[EN] PREPARATION OF 3,3-DIALKXOY-1-METHYLENEPROPYL ARENES<br/>[FR] PRÉPARATION DE 3,3-DIALKOXY-1-MÉTHYLÈNEPROPYL ARÈNES
申请人:LONZA AG
公开号:WO2012150281A1
公开(公告)日:2012-11-08
The invention discloses a method for the preparation of 3,3-dialkxoy-1-methylenepropyl arenes from crotonaldehyde and aryldiazonium salts, and intermediates for the preparation of perfumes.
Visible Light-Driven, Gold(I)-Catalyzed Preparation of Symmetrical (Hetero)biaryls by Homocoupling of Arylazo Sulfones
作者:Lorenzo Di Terlizzi、Simone Scaringi、Carlotta Raviola、Riccardo Pedrazzani、Marco Bandini、Maurizio Fagnoni、Stefano Protti
DOI:10.1021/acs.joc.2c00225
日期:2022.4.1
The preparation of symmetrical (hetero)biaryls via arylazo sulfones has been successfully carried out upon visiblelight irradiation in the presence of PPh3AuCl as the catalyst. The present protocol led to the efficient synthesis of a wide range of target compounds in an organic-aqueous solvent under photocatalyst-free conditions.
NEW PROCESS FOR PREPARING ARYLBORANES BY ARYLATION OF ORGANOBORON COMPOUNDS
申请人:UNIVERSITE DE BORDEAUX
公开号:US20150191493A1
公开(公告)日:2015-07-09
A new process for the preparation of an arylborane compound, by arylation of a B—H bond, which includes a step (1) of contacting an arenediazonium salt or a heteroarenediazonium salt with an organoboron compound containing at least one B—H bond, in a reaction medium containing a solvent, in the absence of base, in the absence or in the presence of an activating agent, for the preparation of an arylborane compound, and a possible step (2) of recovery and purification of the arylborane compound obtained at the step (1), the arylborane being in particular an aminoarylborane, and a possible step (3) of refunctionalization of the arylborane obtained at step (1) or (2) for the preparation of aryl boronic derivatives or arylborates.