In the work reported herein, the concise and enantioselective total synthesis of the Schizozygine alkaloid (−)-strempeliopine was developed. This synthetic strategy featured the palladium-catalyzed decarboxylative asymmetric allylic alkylation of N-benzoyl lactam to set up the absolute configuration at the C20 position, a highly diastereoselective one-pot Bischler–Napieralski/lactamization and iminium
Alkenylation and allylation of alkyl iodides with alkenyl and allylsulfones, respectively, took place under Pd/photoirradiation system. The initial alkyl radical, derived from a single electron transfer between Pd(0) and RI, underwent the title transformations. Pd(0) was regenerated through a reductive elimination of PhSO2PdI, which is formed by the combination of the sulfonyl radical and the palladium
[EN] PROCESS FOR PREPARING AN ALPHA-SUBSTITUTED ACRYLATE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN ACRYLATE ALPHA SUBSTITUÉ
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2021138075A1
公开(公告)日:2021-07-08
The present disclosure relates to a process for preparing an alpha-substituted acrylate, the process comprising: a) combining starting materials comprising an alpha-(halomethyl) acrylate and an organozinc compound, thereby forming a product comprising the alpha-substituted acrylate.
[EN] PROCESS FOR PREPARING AN ALPHA-SUBSTITUTED ACRYLATE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN ACRYLATE ALPHA-SUBSTITUÉ
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2021138073A1
公开(公告)日:2021-07-08
The present disclosure relates to a process for preparing an alpha-substituted acrylate, the process comprising: a) combining starting materials comprising an alpha-(halomethyl) acrylate and an organoaluminum compound, thereby forming a product comprising the alpha-substituted acrylate.