A New Route to Substituted Phenols by Cationic Rhodium(I)/BINAP Complex-Catalyzed Decarboxylative [2 + 2 + 2] Cycloaddition
摘要:
A new route to substituted phenols has been developed by cationic rhodium(I)/BINAP complex-catalyzed decarboxylative [2 + 2 + 2] cycloadditions of 1,6- and 1,7-diynes with commercially available vinylene carbonate.
[EN] COMPOUNDS AND THEIR USE IN THE TREATMENT OF BACTERIAL INFECTION<br/>[FR] COMPOSÉS ET LEUR UTILISATION DANS LE TRAITEMENT D'UNE INFECTION BACTÉRIENNE
申请人:HOFFMANN LA ROCHE
公开号:WO2021190727A1
公开(公告)日:2021-09-30
The invention provides novel compounds having the general formula (I) wherein R1, R2, R3a, R3b, R4, A1, A2, A3, A4, A5, A6, B1, B2, B3, B4, and L are as described herein, compositions including the compounds and methods of using the compounds.
Rhodium-Catalyzed [(3+2)+1] Carbocyclization Reactions of Alkynylidenecyclopropanes with Carbon Monoxide: Regiospecific Construction of Polysubstituted Phenols
作者:P. Andrew Evans、Andrew J. Burnie、Daniela E. Negru
DOI:10.1021/ol501724s
日期:2014.9.5
The development of the rhodium-catalyzed [(3+2)+1] carbocyclization reaction of alkynylidenecyclopropanes with carbonmonoxide to construct polysubstituted phenols is described. This work offers a convenient method for the selective formation of tetra- and pentasubstituted phenols, which provide important intermediates for target directed synthesis. Finally, the ability to regiospecifically functionalize
A New Route to Substituted Phenols by Cationic Rhodium(I)/BINAP Complex-Catalyzed Decarboxylative [2 + 2 + 2] Cycloaddition
作者:Hiromi Hara、Masao Hirano、Ken Tanaka
DOI:10.1021/ol900123d
日期:2009.3.19
A new route to substituted phenols has been developed by cationic rhodium(I)/BINAP complex-catalyzed decarboxylative [2 + 2 + 2] cycloadditions of 1,6- and 1,7-diynes with commercially available vinylene carbonate.