Stereomutation of a diastereomeric pair of 10-P-5 hydroxyphosphoranes

2011 ◽  
Vol 22 (3-4) ◽  
pp. 491-499 ◽  
Author(s):  
Satoshi Kojima ◽  
Masaaki Nakamoto ◽  
Shiro Matsukawa ◽  
Kin-ya Akiba
Keyword(s):  
1994 ◽  
Vol 23 (5) ◽  
pp. 949-952 ◽  
Author(s):  
Masaaki Kojima ◽  
Kiyohiko Nakajima ◽  
Masanobu Tsuchimoto ◽  
Miki Tanaka ◽  
Tetsuya Suzuta ◽  
...  

2019 ◽  
Vol 58 (19) ◽  
pp. 12538-12541 ◽  
Author(s):  
Sudip Kumar Bera ◽  
Arijit Singha Hazari ◽  
Goutam Kumar Lahiri
Keyword(s):  

2018 ◽  
Vol 47 (6) ◽  
pp. 800-802
Author(s):  
Takashi Hoshi ◽  
Masataka Fujita ◽  
Shouta Matsushima ◽  
Hisahiro Hagiwara ◽  
Toshio Suzuki

2011 ◽  
Vol 2 (1) ◽  
Author(s):  
Erwin van den Born ◽  
Cathrine B. Vågbø ◽  
Lene Songe-Møller ◽  
Vibeke Leihne ◽  
Guro F. Lien ◽  
...  
Keyword(s):  

1980 ◽  
Vol 33 (7) ◽  
pp. 1559 ◽  
Author(s):  
LN Mander ◽  
JV Turner

The [2,3]-sigmatropic rearrangement of a series of acetonitrile-derived allylic ammonium ylides [RCH2N+ (C4H8)-CHCN; R = 4'-t- butylcyclohexylidenemethyl (3), 4'-t-butylcyclohex-1-enyl (10), 5'-t- butyl-2'-methylcyclohex-1-enyl (14), 4'-t-butyl-2'-methylcyclohex-1- enyl (20)], followed by acid-catalysed hydrolysis in each case, furnished an excellent yield of a diastereomeric pair of β,γ-olefinic aldehydes [(5)/(6), (12)/(13), (15)/(16) and (21)/(22)]. With cyclohexylidene ylide (4) addition of the carbanion to the more exposed (equatorial vector) face is strongly preferred. In the cyclohexenyl examples there is a clear stereoelectronic requirement in opposition to steric forces which leads mainly to axial carbon-carbon bond formation.


Tetrahedron ◽  
1994 ◽  
Vol 50 (7) ◽  
pp. 1919-1926 ◽  
Author(s):  
Chunhua Yang ◽  
Raheel Qamar ◽  
Scott J. Norton ◽  
Paul F. Cook ◽  
David E. Minter

CrystEngComm ◽  
2021 ◽  
Author(s):  
Rama Krishna Gamidi ◽  
Monica Dandawate ◽  
Srinu Tothadi ◽  
Rahul Choudhury ◽  
Ashwini K. Nangia ◽  
...  

The visually indistinguishable acicular crystals of a (2S,3R/S)-3-ethyl-1-phenylhex-5-ene-2,3-diol (ephd) diastereomeric pair are separated via the mechanical response based on elastic (2S,3R, right) and brittle (2S,3S, left) crystals.


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