An Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>/Schiff base/Cu(<scp>ii</scp>) complex as an efficient recyclable magnetic nanocatalyst for selective mono <i>N</i>-arylation of primary <i>O</i>-alkyl thiocarbamates and primary <i>O</i>-alkyl carbamates with aryl halides and arylboronic acids
the selective mono N-arylation of primary O-alkyl thiocarbamates and primary O-alkyl carbamates with aryl halides and arylboronic acids in the presence of a recyclable magnetic Cu(II) nanocatalyst is described. A variety of mono N-arylated O-alkyl thiocarbamates and O-alkyl carbamates were prepared in good to excellent yields with a broad range of aryl coupling partners. The magnetic nanocatalyst can
Vinylchloroformate-free synthesis of vinyl and allyl(thio) carbamates
申请人:Seelye E. David
公开号:US20050176980A1
公开(公告)日:2005-08-11
The invention generally relates to methods of forming vinyl(thio)carbamates and more particularly to a vinylchloroformate-free method of synthesizing (N-vinyloxycarbonyl)-3-aminopropyltris(trimethylsiloxysilane).