Viewed: 13:25:35 in December 16, 2019

Predictive chirality sensing via Schiff base formation (Pilicer, Samantha L.; Mancinelli, Michele; Mazzanti, Andrea; Wolf, Christian)
Org. Biomol. Chem. 2019, 17 (27), 6699−6705.

Keywords: Schiff base; circular dichroism; enantiomeric excess

不斉中心を持つ光学活性アミンの絶対配置と光学純度の新規な決定法について報告している論文のようです。

光学活性アミンの絶対配置の決定方法には色々あって、最も確実な方法の一つに結晶化してX線解析するというのがあるのですが、この方法、アミンが液体だとまず無理なのです。なぜ無理かというと、アミン分子が色々な意味で動きまくるからです。色々な意味というのは、分子そのものが移動したり、分子中の単結合が回転したり、などなど。その対策、つまり、アミン分子そのものの動きを止めるために、アミンと何かを反応させて結晶化させる方法が取られてます。

この論文ですが、結晶化による絶対配置の決定のためにもですが、同時に光学活性絡みの何か他の測定法にもという一石二鳥も狙ったのが、この論文の趣旨のような気がします。その手法として、何かを反応させて分子構造を混み混みにしたった、ということなのでしょう。分子中の単結合の回転により取りうる配座を制限して、光物性が「きっちり」出るようにした、そしたら光学純度をCDスペクトルとかで決められるぞと。

目論見どおりの結果が出たのか知りたいので、読みたい論文に追加です。p-ブロモベンズアミド化とか結晶化させるための反応は色々知られてるし、わざわざこんなことせんでもとは思いましたが、派生する何かがありそうな気もしますので。

 

Baudisch反応 [Doi 1]
Carroll転位 [Doi 1]
Cope転位 [Doi 1]
Kroll法Ramberg−Bäcklund反応 (該当者なし)

炭素14をMartin KamenとSam Rubenが発見
米国・科学者動員令1940
日本ニュース映画社(日本映画社)設立
武田化成株式会社(吉富製薬)設立
大阪朝日新聞と東京朝日新聞の題号を朝日新聞に統一
大日本航空が横浜-サイパン-パラオ間定期航空路を開始
勝鬨橋開通
艦上戦闘機にゼロ戦採用
勤労所得の源泉徴収開始
ハティ・マクダニエルがアカデミー賞助演女優賞を受賞

 

ここの画像を使用しています。

雨の朝のスズメ。

 

Just finished the calculations: trimethylsilyl methanesulfonate (MsOTMS) https://t.co/CxvvMUriAV pic.twitter.com/mix07ABXRy

— nanoniele (@nanoniele) July 11, 2019

 

　

 

引っ張りに強いカーボンナノチューブの構造を特定 〜軽量で高強度な究極の構造材料の実現に一歩近づく〜
(JST)
https://www.jst.go.jp/pr/annou...

定説覆す発見　１０ｎｍサイズの高品質マグネタイト作製で明らかに 〜ナノエレクトロニクスへの展開とマグネタイトの性質の起源解明に期待〜
(JST)
https://www.jst.go.jp/pr/annou...

単独で普通の細胞を直に幹細胞に変えるステミン遺伝子の発見
(名古屋大学)
http://www.nagoya-u.ac.jp/abou...

ヒトが『しっとり感』を感じるメカニズムを解明〜化粧品･自動車・繊維・バーチャルリアリティに応用展開〜
(山形大学)
https://www.yamagata-u.ac.jp/j...

引っ張りに強いカーボンナノチューブの構造を特定 −軽量で高強度な究極の構造材料の実現に一歩近づく−
(京都大学)
http://www.kyoto-u.ac.jp/ja/re...

優しさを伝える介護技術の習熟度をAIで評価する手法を開発 −画像認識で熟練者と初心者の違いを見つける−
(京都大学)
http://www.kyoto-u.ac.jp/ja/re...

[ChemElectroChem 2019071008173, 2019, 12−3101]
Electrochemical CO2 Reduction on Bimetallic Surface Alloys: Enhanced Selectivity to CO for Co/Au(110) and to H2 for Sn/Au(110)
(Todoroki, Naoto; Tei, Hiroki; Miyakawa, Taku; Tsurumaki, Hiroto; Wadayama, Toshimasa)
Tag: AR, RHE, H, EC, ML, STM, STM, CO2R, ECR, PCD

[ChemNanoMat 20190710082340, 2019, 7−957]
COF-Derived N,P Co-Doped Carbon as a Metal-Free Catalyst for Highly Efficient Oxygen Reduction Reaction
(Yang, Chao; Maenosono, Shinya; Duan, Jingui; Zhang, Xiaobin)
Tag: COF, C, O, CH3OH, C, ORR

[ChemPhysChem 20190710082618, 2019, 13−1698]
Influence of Perfluorohexane-Enriched Atmosphere on Viscoelasticity and Structural Order of Self-Assembled Semifluorinated Alkanes at the Air-Water Interface
(Mielke, Salom�; Abuillan, Wasim; Veschgini, Mariam; Liu, Xianhe; Konovalov, Oleg; Krafft, Marie Pierre; Tanaka, Motomu)
Tag: PFH, ML, GI, GISAX, GISAXS, VE, AWI

[Chem. Lett. 20190710082927, 2019, 8−799]
Sodium-ion Intercalation Behavior of Graphitized Carbon Nanospheres Covered with Basal Plane
(Kondo, Yasuyuki; Fukutsuka, Tomokazu; Miyazaki, Kohei; Miyahara, Yuto; Abe, Takeshi)
Tag: GC, C, Na, CNS

[Chem. Lett. 20190710082938, 2019, 8−795]
Facile Preparation of Holey Carbon Nanotubes Assisted by Ag Nanoparticle Catalysts for High-performance Micro-supercapacitors
(Gan, Lu; Xu, Cigang; Yang, Jiangrong; Ma, Yunfeng; Cai, Jinguang; Watanabe, Akira)
Tag: NT, SSA, C, O, Csp, FG, CNT, NP, C, Cat

[Chem. Lett. 20190710082938, 2019, 8−791]
Meta-linkage Design of Bis-aryldiazonium Modifiers for Wavelength Tuning of Near Infrared Photoluminescence from Locally Functionalized Single-walled Carbon Nanotubes
(Shiraki, Tomohiro; Yu, Boda; Shiraishi, Tomonari; Shiga, Tamehito; Fujigaya, Tsuyohiko)
Tag: NT, SWCNT, C, PL, CNT, NIR, IR

[Chem. Lett. 20190710082951, 2019, 8−787]
A P–C Chelate, Protic 1,2-Dihydropyridin-2-ylidene Ruthenium Complex: Synthesis, Structure, and Reversible Deprotonation
(Tashima, Naoto; Sawazaki, Taka; Kayaki, Yoshihito; Kuwata, Shigeki)
Tag: bp, ACN, AN, ANT, Ru, MeCN, OAc, A, Na, NpH

[Chem. Lett. 20190710082956, 2019, 8−783]
Enantioselective Aza-Michael/Protonation Reactions in Water
(Kitanosono, Taku; Sakai, Masaru; Zhu, Lei; Kobayashi, Sh�)
Tag: Nu, Me

[Chem. Lett. 20190710082959, 2019, 8−775]
Selective Hydrogen Production from Formate Using Nanoparticle with Homogeneously Polymer-dispersed Platinum Clusters
(Minami, Yusuke; Muroga, Yumiko; Yoshida, Tomoko; Amao, Yutaka)
Tag: Ar, PVP, PVPON, H, fa, Pt, PAA, NP, 64-18-6, HCOOH

[Chem. Lett. 20190710083015, 2019, 8−771]
Synthesis of Seven-membered Ring Containing Difluoromethylene Unit by Sc(OTf)3-catalyzed Activation of Single C–F Bond in CF3 Group
(Hisano, Naoya; Kimura, Daiki; Mori, Keiji)
Tag: LA

[Chem. Lett. 20190710083022, 2019, 8−768]
Facile Construction of an α-(1-Cyclopentenyl)ketone Core by Ruthenium-catalyzed Hydrative Cyclization of 1,6-Allenyne: Total Synthesis of (+)-Myomontanone
(Katagiri, Koichi; Kodera, Haruka; Tayu, Masanori; Saito, Nozomi)
Tag: Ru, Nu, Ru-catalyzed

[Chem. Lett. 20190710083035, 2019, 8−760]
Palladium-catalyzed One-step Synthesis of Symmetrical Diaryl Sulfones from Aryl Halides and a Sulfur Dioxide Surrogate
(Tanaka, Hiromichi; Konishi, Hideyuki; Manabe, Kei)
Tag: Pd, S, C, Ar, SO2

[Chem. Lett. 20190710083034, 2019, 8−764]
Fibronectin Coating on Implant Material Surface Attracted Both Osteoblasts and Bacteria
(Cui, Xinnan; Hoshino, Yu; Miura, Yoshiko)
Tag: FN

[Chem. Lett. 20190710083041, 2019, 8−756]
Formation of Pores and Ï?-Stacked Columns in Benzothienobenzothiophene-based Linear Coordination Polymers
(Koyama, Shohei; Iguchi, Hiroaki; Takaishi, Shinya; Cosquer, Goulven; Kumagai, Shohei; Takeya, Jun; Okamoto, Toshihiro; Yamashita, Masahiro)
Tag: PCP, OMO, Pyr, MO, SC, OSC, CP, OS, HOMO

[Bull. Chem. Soc. Jpn 20190710083056, 2019, 7−1234]
Sterilization Properties of Ozonated Water and Sodium Hypochlorite Assisted by Ultraviolet Irradiation
(Maeno, Yuki; Kitaori, Noriyuki)
Tag: UV, Na

[Bull. Chem. Soc. Jpn 2019071008315, 2019, 7−1226]
Self-Assembled Liquid-Crystalline Ion Conductors: Odd-Even Effects of Flexible Spacers Binding a Carbonate Moiety and an Aliphatic Rod-Like Core on Phase Transition Properties and Ion Conductivities
(Mizumura, Yurika; H�gberg, Daniel; Arai, Kenichiro; Sakuda, Junji; Soberats, Bartolome; Yoshio, Masafumi; Kato, Takashi)
Tag: NS, LC, C, Li, LC

[Bull. Chem. Soc. Jpn 20190710083115, 2019, 7−1211]
Two-Way Chromic Systems Based on Tetraarylanthraquinodimethanes: Electrochromism in Solution and Mechanofluorochromism in a Solid State
(Ishigaki, Yusuke; Sugawara, Kazuma; Yoshida, Masaki; Kato, Masako; Suzuki, Takanori)
Tag: PXRD, EC, ET, FL, em, SS, XR, XRD, e-

[Bull. Chem. Soc. Jpn 20190710083115, 2019, 7−1218]
Development of a Flow-Injection ESR System for Evaluating the Lipophilic Alkoxyl Radical Eliminating Capacities (L-AREC) of Tocopherol Analogues and Unsaturated Fatty Acids
(Sakurai, Yasuhiro; Yamaguchi, Tomoko; Ando, Kai; Kuwabara, Keiko; Nakajima, Hiroki; Morimoto, Chie; Yoshikawa, Shinichi; Niwa, Masumi; Miyake, Yusuke; Kanaori, Kenji; Nakajima, Akira; Tajima, Kunihiko)
Tag: HAA, OAc, A, Et, ES, H, R, FA, ESR, Al, In, UFA, FI, PhOH, AcOEt, e-, EA

[Nature Chemistry 20190710083139, 2019, 7−669]
A catalytically active [Mn]-hydrogenase incorporating a non-native metal cofactor
(Pan, Hui-Jie; Huang, Gangfeng; Wodrich, Matthew D.; Tirani, Farzaneh Fadaei; Ataka, Kenichi; Shima, Seigo; Hu, Xile)
Tag: H, TM, Mn, Cat

[Nature Chemistry 20190710083154, 2019, 7−644]
De novo macrocyclic peptides that specifically modulate Lys48-linked ubiquitin chains
(Nawatha, Mickal; Rogers, Joseph M.; Bonn, Steven M.; Livneh, Ido; Lemma, Betsegaw; Mali, Sachitanand M.; Vamisetti, Ganga B.; Sun, Hao; Bercovich, Beatrice; Huang, Yichao; Ciechanover, Aaron; Fushman, David; Suga, Hiroaki; Brik, Ashraf)
Tag: Ub, PCD

[Org. Lett. 2019071008337, 2019, 13−4933]
Synthesis of (2,2-Diborylvinyl)arenes by Rhodium-Catalyzed Desulfanylative gem-Diborylation of 2-Arylvinyl Sulfides
(Uetake, Yuta; Isoda, Motoyuki; Niwa, Takashi; Hosoya, Takamitsu)
Tag: BPD, Rh, C, B2Pin

[Org. Lett. 20190710083436, 2019, 13−4991]
Br�nsted Acid-Initiated Formal [1,3]-Rearrangement Dictated by �-Substituted Ene-Aldimines
(Jongwohan, Chanantida; Honda, Yasushi; Suzuki, Toshiyasu; Fujinami, Takeshi; Adachi, Kiyohiro; Momiyama, Norie)
Tag: NH2

[Org. Lett. 20190710083455, 2019, 13−5006]
Synthesis of 4-Deoxy Pyranosides via Catalyst-Controlled Site-Selective Toluoylation of Abundant Sugars
(Yanagi, Masanori; Ueda, Yoshihiro; Ninomiya, Ryo; Imayoshi, Ayumi; Furuta, Takumi; Mishiro, Kenji; Kawabata, Takeo)
Tag: C

[Org. Lett. 2019071008391, 2019, 13−5152]
Cu-Catalyzed Cross-Dehydrogenative Coupling of Heteroaryl C(sp²)–H and Tertiary C(sp³)–H Bonds for the Construction of All-Carbon Triaryl Quaternary Centers
(Tang, Zhi; Liu, Zhili; Tong, Zhou; Xu, Zhihui; Au, Chak-Tong; Qiu, Renhua; Kambe, Nobuaki)
Tag: CDC, TP, C, R, TPH, IND, cbz, 91-22-5, Ar

[Org. Lett. 2019071008397, 2019, 13−5162]
Site-Selectivity of Prato Additions to C₇₀: Experimental and Theoretical Studies of a New Thermodynamic Product at the dd-[5,6]-Junction
(Liosi, Korinne; Romero-Rivera, Adrian; Semivrazhskaya, Olesya; Caniglia, Caravaggio D.; Garcia-Borràs, Marc; Trapp, Nils; Osuna, S�lvia; Yamakoshi, Yoko)
Tag: XR, SCXRD, KP, XRD, SC

[Org. Lett. 20190710083942, 2019, 13−5183]
Asymmetric Michael Reaction of α-CF₃ Thioester and α,Î�-Unsaturated Aldehyde Catalyzed by Diphenylprolinol Silyl Ether
(Hayashi, Yujiro; Yamada, Tomoaki; Sato, Misaki; Watanabe, Shoya; Kwon, Eunsang; Iwasaki, Kotaro; Umemiya, Shigenobu)
Tag: as, MR, pip, PIPD, TFM

[Org. Lett. 20190710084126, 2019, 13−5238]
Cobalt-Catalyzed Tandem Radical Cyclization/C–C Coupling Initiated by Directed C–H Activation
(Sun, Qiao; Yoshikai, Naohiko)
Tag: R, Het, Co, C, Ar

[Org. Lett. 20190710084140, 2019, 13−5252]
3-Thioaryne Intermediates for the Synthesis of Diverse Thioarenes
(Nakamura, Yu; Miyata, Yoshihiro; Uchida, Keisuke; Yoshida, Suguru; Hosoya, Takamitsu)
Tag: Het, S, Ar

[Org. Lett. 2019071008423, 2019, 13−5269]
Multicomponent Ugi Reaction of Indole-N-carboxylic Acids: Expeditious Access to Indole Carboxamide Amino Amides
(Zeng, Linwei; Sajiki, Hironao; Cui, Sunliang)
Tag: IND, COOH, NH2, Ugi

[J. Phys. Chem. Lett. 20190710084647, 2019, 13−3531]
pH-Sensing Machinery of Excitation Energy Transfer in Diatom PSI–FCPI Complexes
(Nagao, Ryo; Yokono, Makio; Ueno, Yoshifumi; Shen, Jian-Ren; Akimoto, Seiji)
Tag: PS, EET, FL, LHC, ET, PSI, CHl, SSF

[J. Phys. Chem. Lett. 20190710084711, 2019, 13−3615]
pH-Responsive Binding Properties of Light-Harvesting Complexes in a Photosystem II Supercomplex Investigated by Thermodynamic Dissociation Kinetics Analysis
(Kim, Eunchul; Watanabe, Akimasa; Sato, Ryoichi; Okajima, Keisuke; Minagawa, Jun)
Tag: PS, LHC, PSII, MP

[J. Phys. Chem. Lett. 20190710084711, 2019, 13−3710]
�-Carotene Probes the Energy Transfer Pathway in the Photosystem II Core Complex
(Yoneda, Yusuke; Nagasawa, Yutaka; Umena, Yasufumi; Miyasaka, Hiroshi)
Tag: PS, CS, ET, RC, CAR, ABS, CHl, PSII, Pheo

[J. Phys. Chem. Lett. 20190710085031, 2019, 13−3744]
Water Confined in Hydrophobic Cup-Stacked Carbon Nanotubes beyond Surface-Tension Dominance
(Li, Qin-Yi; Matsushita, Ryo; Tomo, Yoko; Ikuta, Tatsuya; Takahashi, Koji)
Tag: CA, NT, CSCNT, C, H, EM, CNT, HV, TEM, e-

[J. Phys. Chem. C 20190710085313, 2019, 26−16034]
Evaluation of the Electronic and Local Structure of Mn in Proton-Conducting Oxide, Ca(Zr,Mn)O_3�?�, To Elucidate a Direct Hydrogen Dissolution Reaction
(Oishi, Masatsugu; Nakamura, Takashi; Watanabe, Iwao; Yamamoto, Takashi; Doi, Takuya; Ina, Toshiaki; Nitta, Kiyofumi; Amezawa, Koji; Okuyama, Yuji)
Tag: H, O, O, OV, Ovac, ABS, XAS, e-, P

[J. Phys. Chem. C 2019071008544, 2019, 26−16127]
Deviation from Point Dipole Analysis for Exciton Quenching in Quaterthiophene-Terminated Self-Assembled Monolayers on Au(111)
(Osumi, Yuji; Yamada, Takashi; Ie, Yutaka; Kato, Hiroyuki S.)
Tag: XR, XRR, EET, ML, ET, SAM, e-

[J. Phys. Chem. C 2019071008561, 2019, 26−16281]
Quinone-Facilitated Coordinated Bipyrene and Polypyrene on Au(111) by Capture of Gold Adatoms
(Liu, Xinbang; Du, Yongping; Timmer, Alexander; M�nig, Harry; Wan, Xinling; Huang, Xinyan; Ji, Qingmin; Kan, Erjun; Ariga, Katsuhiko; Hill, Jonathan P.; Fuchs, Harald; Kong, Huihui)
Tag: NS, PE, Au, XPS, Br, PS, STM, Pyr, Py, DFT

[J. Phys. Chem. A 2019071009057, 2019, 26−5633]
First-Principles Study of the Reaction Mechanism of CHO + H on Graphene Surface
(Kayanuma, Megumi; Shoji, Mitsuo; Furuya, Kenji; Kamiya, Katsumasa; Aikawa, Yuri; Umemura, Masayuki; Shigeta, Yasuteru)
Tag: ISM, R, AIMD, MDS, MD, ABMD, OTS, GS

[J. Phys. Chem. A 20190710090510, 2019, 26−5649]
Time-Dependent Long-Range-Corrected Density-Functional Tight-Binding Method Combined with the Polarizable Continuum Model
(Nishimoto, Yoshio)
Tag: PCM, TD, LRC, DFTB, em, ABS, TB, DFT

[J. Org. Chem. 20190710090556, 2019, 13−8380]
Substitution of the Dimethylamino Group in Gramines and One-Pot Cyclization to Tetrahydro-�-carbolines Using a Triazine-Based Activating Agent
(Fujita, Hikaru; Nishikawa, Riho; Sasamoto, Ozora; Kitamura, Masanori; Kunishima, Munetaka)
Tag: Li, 244-63-3, NH2, DMA, Nu, Me

[J. Org. Chem. 20190710090751, 2019, 13−8552]
Theoretical Study on the Rhodium-Catalyzed Hydrosilylation of C═C and C═O Double Bonds with Tertiary Silane
(Zhao, Liming; Nakatani, Naoki; Sunada, Yusuke; Nagashima, Hideo; Hasegawa, Jun-ya)
Tag: NR, OS, RE, TS, rds, DMK, DB, ACE, Rh, C, Cat, SiH4

[J. Org. Chem. 20190710090835, 2019, 13−8596]
Topologically Controlled Synthesis of Reversible Macrocyclic Compounds in Microemulsions
(Alqarni, Yanallah; Tabor, Rico F.; Saito, Kei)
Tag: CM, PD, M

[J. Org. Chem. 20190710090839, 2019, 13−8602]
Iron-Promoted Intramolecular Cascade Cyclization for the Synthesis of Selenophene-Fused, Quinoline-Based Heteroacenes
(Sonawane, Amol D.; Kubota, Yasuhiro; Koketsu, Mamoru)
Tag: AE, Fe, Se, Nu, 91-22-5, DCM, CH2Cl2

[ACS Catal. 20190710091754, 2019, 7−6425]
Pt/TiH₂ Catalyst for Ionic Hydrogenation via Stored Hydrides in the Presence of Gaseous H₂
(Wu, Qifan; Zhang, Chao; Arai, Masahiko; Zhang, Bin; Shi, Ruhui; Wu, Peixuan; Wang, Zhuangqing; Liu, Qiang; Liu, Ke; Lin, Weiwei; Cheng, Haiyang; Zhao, Fengyu)
Tag: ET, H, Ti, CAL, 104-55-2, e-, C, Cat

[ACS Catal. 20190710091753, 2019, 7−6305]
Role of a Hydroxide Layer on Cu Electrodes in Electrochemical CO₂ Reduction
(Iijima, Go; Inomata, Tomohiko; Yamaguchi, Hitoshi; Ito, Miho; Masuda, Hideki)
Tag: ATR, SEIRAS, GB, Cu, EC, HC, O, CH3CH2OH, ECR, SEIRA, ABS, CPE, CO2R, C2H4, C, CH4, IR, Cat, EtOH

[ACS Catal. 20190710092037, 2019, 7−6555]
Keto-Difluoromethylation of Aromatic Alkenes by Photoredox Catalysis: Step-Economical Synthesis of α-CF₂H-Substituted Ketones in Flow
(Nakayama, Yoshiki; Ando, Gaku; Abe, Manabu; Koike, Takashi; Akita, Munetaka)
Tag: FP, C, EC, R, LFP, PC, DFT, SES

[ACS Catal. 20190710092120, 2019, 7−6118]
Reductive C–C Coupling by Desulfurizing Gold-Catalyzed Photoreactions
(Zhang, Lumin; Si, Xiaojia; Yang, Yangyang; Witzel, Sina; Sekine, Kohei; Rudolph, Matthias; Rominger, Frank)
Tag: St, Au, AA, H, R, UV, ABS, E, El, LE, e-, LED, BL, Alk

[ACS Catal. 2019071009245, 2019, 7−6415]
Deactivation Mechanism of Pd/CeO₂–ZrO₂ Three-Way Catalysts Analyzed by Chassis-Dynamometer Tests and in Situ Diffuse Reflectance Spectroscopy
(Machida, Masato; Fujiwara, Ayumi; Yoshida, Hiroshi; Ohyama, Junya; Asakura, Hiroyuki; Hosokawa, Saburo; Tanaka, Tsunehiro; Haneda, Masaaki; Tomita, Atsuko; Miki, Takeshi; Iwashina, Katsuya; Endo, Yoshinori; Nakahara, Yunosuke; Minami, Shigekazu; Kato, Naohiro; Hayashi, Yoshiyuki; Goto, Hideki; Hori, Masao; Tsuda, Toyofumi; Miura, Kazuya; Kimata, Fumikazu; Iwachido, Kinichi)
Tag: TR, XR, O, EM, DRS, TWC, ABS, XAS, XRD, e-, C, TPB, GS