CO2 Incorporation Reaction Using Arynes: Straightforward Access to Benzoxazinone
摘要:
A zwitterion, generated from an aryne and an imine, has been demonstrated to serve as an excellent molecular scaffold for capturing CO2, which results in the straightforward formation of diverse benzoxazinones.
METAL-CATALYZED COPOLYMERIZATION OF IMINES AND CARBON MONOXIDE AS A ROUTE TO SYNTHESIZE POLYPEPTIDES
申请人:SUN Huailin
公开号:US20090264619A1
公开(公告)日:2009-10-22
Polypeptides of formula (I):
wherein R
1
and R
2
are substituents independently selected from substituted and un-substituted alkyl groups and substituted and un-substituted aryl groups, and n is an integer greater than or equal to 2. Synthesis methods are also provided that do not use amino acids as starting materials, but instead employ imines and carbon monoxide as monomers that undergo transition metal-catalyzed alternating copolymerization to directly provide polypeptides using an acylcobalt catalyst with the following structural formula:
wherein R is selected from the group consisting of alkyl, phenyl, and substituted phenyl groups.