Synthesis of aliphatic isocyanates via a two-phase Hofmann reaction
作者:Anita O. Sy、Joseph W. Raksis
DOI:10.1016/0040-4039(80)80008-6
日期:1980.1
A convenient method of preparing aliphatic isocyanates via a two-phase Hofmannreaction using a phase transfer catalyst is described.
描述了一种使用相转移催化剂通过两相霍夫曼反应制备脂族异氰酸酯的简便方法。
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.