scholarly journals α‐Selective Ring‐Opening Reactions of Bicyclo[1.1.0]butyl Boronic Ester with Nucleophiles

2020 ◽  
Vol 60 (1) ◽  
pp. 212-216 ◽  
Author(s):  
Lin Guo ◽  
Adam Noble ◽  
Varinder K. Aggarwal
Keyword(s):  
Ring Opening ◽  
Boronic Ester ◽  
Ring Opening Reactions ◽  
Selective Ring Opening

scholarly journals α‐Selective Ring‐Opening Reactions of Bicyclo[1.1.0]butyl Boronic Ester with Nucleophiles

2020 ◽  
Vol 133 (1) ◽  
pp. 214-218
Author(s):  
Lin Guo ◽  
Adam Noble ◽  
Varinder K. Aggarwal
Keyword(s):  
Ring Opening ◽  
Boronic Ester ◽  
Ring Opening Reactions ◽  
Selective Ring Opening

Asymmetric Syntheses of Pyrrolidine and Piperidine Derivatives via Regio- and Stereo-Selective Ring-Opening Reactions of Chiral Aziridine

Heterocycles ◽  
2012 ◽  
Vol 86 (1) ◽  
pp. 371 ◽  
Author(s):  
Kimio Higashiyama ◽  
Masataka Matsumura ◽  
Emiko Kurita ◽  
Takayasu Yamauchi
Keyword(s):  
Ring Opening ◽  
Asymmetric Syntheses ◽  
Ring Opening Reactions ◽  
Selective Ring Opening

Synthesis ofN-aryl azetidine-2,4-diones and polymalonamides prepared from selective ring-opening reactions

2006 ◽  
Vol 103 (6) ◽  
pp. 3591-3599 ◽  
Author(s):  
Shenghong A. Dai ◽  
Tzong-Yuan Juang ◽  
Chih-Ping Chen ◽  
Hsin-Yu Chang ◽  
Wen-Jang Kuo ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Reactions ◽  
Selective Ring Opening

Cu-Catalyzed cis-selective ring-opening cross-coupling of an oxabicyclic olefin with an organoboron reagent

2021 ◽  
Vol 19 (7) ◽  
pp. 1493-1497
Author(s):  
Bowen Liu ◽  
Guochun Peng ◽  
Yu Zhang ◽  
Chunhui Liu ◽  
Jinbo Zhao
Keyword(s):  
Ring Opening ◽  
Cross Coupling ◽  
Dft Studies ◽  
Rate Determining Step ◽  
Boronic Ester ◽  
Selective Ring Opening

Cu(i)-Catalyzed cis-selective ring-opening of an oxabicyclic olefin with an organoboron reagent is described. DFT studies revealed an alternative boronic ester assisted non-canonical β-oxygen elimination as the rate-determining step.

scholarly journals Selective preparation of tetrasubstituted fluoroalkenes by fluorine-directed oxetane ring-opening reactions

2020 ◽  
Vol 16 ◽  
pp. 1936-1946
Author(s):  
Clément Q Fontenelle ◽  
Thibault Thierry ◽  
Romain Laporte ◽  
Emmanuel Pfund ◽  
Thierry Lequeux
Keyword(s):  
Ring Opening ◽  
Fluorine Atom ◽  
Van Der Waals ◽  
Ring Opening Reaction ◽  
Ring Opening Reactions ◽  
Bromide Ions ◽  
Selective Ring Opening ◽  
Oxetane Ring ◽  
Van Der Waals Radii

The selective ring-opening reaction of fluoroalkylidene-oxetanes was directed by the presence of the fluorine atom, enabling a two-step access to tetrasubstituted fluoroalkenes with excellent geometry control. Despite its small van der Waals radii electronic, rather than steric influences of the fluorine atom governed the ring-opening reaction with bromide ions, even in the presence of bulky substituents.

Sign in / Sign up

Export Citation Format

Share Document