Controlled reduction of isocyanates to formamides using monomeric magnesium
作者:Rohit Kumar、Vishal Sharma、Subhrashis Banerjee、Kumar Vanka、Sakya S. Sen
DOI:10.1039/d3cc00036b
日期:——
This work describes a transition metal-free methodology involving an efficient and controlled reduction of isocyanates to only formamide derivatives using pinacolborane (HBpin) as the hydrogenating agent and a bis(phosphino)carbazole ligand stabilized magnesium methyl complex (1) as the catalyst. A large number of substrates undergo selective hydroboration and give exclusively N-boryl formamides.
Vinylchloroformate-free synthesis of vinyl and allyl(thio)carbamates
申请人:Bausch & Lomb Incorporated
公开号:EP1892237A1
公开(公告)日:2008-02-27
The invention generally relates to methods of forming allyl(thio)carbamates and more particularly to a method of synthesizing allyl(thio)carbamates that does not necessitate the use of phosgene and organomercury intermediates.