Consecutive borylcupration/C–C coupling of γ-alkenyl aldehydes towards diastereoselective 2-(borylmethyl)cycloalkanols
作者:Ricardo J. Maza、Jordi Royes、Jorge J. Carbó、Elena Fernández
DOI:10.1039/d0cc02263b
日期:——
Copper(I) catalyzes the borylativecyclization of γ-alkenyl aldehydes through chemo- and regioselective addition of Cu–B to CC and concomitant intramolecular 1,2-addition of Cu–C on CO. The products are formed in an exclusive diastereoselective manner and computational analysis identifies the key points for the observed chemo- and diastereoselectivity.
PREPARATION OF PRECURSORS OF CARBENES OF CAAC TYPE AND PREPARING SAID CARBENES THEREFROM
申请人:Mignani Gérard
公开号:US20100113791A1
公开(公告)日:2010-05-06
Precursors of carbenes of CAAC type (Cyclic)(Alkyl)(Amino)(Carbenes) are prepared and carbenes are produced therefrom; novel synthesis intermediates are provided for preparing the precursors of CAAC-type carbenes.
Chiral Cyclic Alkyl Amino Carbene (CAAC) Transition-Metal Complexes: Synthesis, Structural Analysis, and Evaluation in Asymmetric Catalysis
作者:Adrien Madron du Vigné、Nicolai Cramer
DOI:10.1021/acs.organomet.2c00351
日期:2022.10.10
Despite recent advances in the field of cyclicalkylaminocarbenes (CAACs) including a few complementary synthetic strategies affording CAACs with various substitution patterns, the application potential of chiral CAACs to efficiently catalyze asymmetric organometallic transformations remains largely underdeveloped. Herein, we describe a convenient and robust route that incorporates common chiral
[EN] PROCESS FOR PREPARING PRECURSORS OF CARBENES OF CAAC TYPE AND USE THEREOF FOR PREPARING SAID CARBENES<br/>[FR] PROCEDE DE PREPARATION DE PRECURSEURS DE CARBENES DE TYPE CAAC ET LEUR UTILISATION POUR PREPARER LESDITS CARBENES
申请人:RHODIA OPERATIONS
公开号:WO2008125568A1
公开(公告)日:2008-10-23
[EN] The present invention relates to a process for preparing precursors of carbenes of CAAC type (Cyclic) (Alkyl) (Amino) (Carbenes) and to the use thereof for preparing said carbenes. The invention relates to the use of new synthesis intermediates for preparing the precursors of CAAC-type carbenes. The new production intermediates correspond to the following formula: (I) the various symbols having the meaning given in claim 1. Other subjects of the invention lie in the conversion of the compounds of formula (I) for the purpose of obtaining the CAAC-type carbenes. [FR] La présente invention a pour objet un procédé de préparation de précurseurs de carbènes de type CAAC (Cyclic) (Alkyl) (Amino) (Carbenes) et leur utilisation pour préparer lesdits carbènes. L'invention vise l'utilisation de nouvels intermédiaires de synthèse pour préparer les précurseurs de carbènes de type CAAC. Les nouvels intermédiaires de fabrication répondent à la formule suivante: (I) les différents symboles ayant la signification donnée dans la revendication 1. D'autres objets de l'invention résident dans la transformation des composés de formule (I) en vue d'obtenir les carbènes de type CAAC.