申请人：Zhong Guofu
公开号：US20110124881A1
公开（公告）日：2011-05-26
Disclosed is a process of forming a pyrrole compound. The process comprises contacting an α-carbonyl oxime compound 1
and an α,β-unsaturated aldehyde 2
R
1
and R
2
in compound 1 are independently selected from the group consisting of H, a silyl-group, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group, and an arylalicyclic group. The aliphatic, alicyclic, aromatic, arylaliphatic, and arylalicyclic groups comprise 0 to about 3 heteroatoms selected from the group N, O, S, Se and Si. R
3
in aldehyde 2 is selected from the group consisting of H, a silyl-group, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group, and an arylalicyclic group. The aliphatic, alicyclic, aromatic, arylaliphatic, and arylalicyclic groups comprise 0 to about 3 heteroatoms selected from the group N, O, S, Se and Si. The α-carbonyl oxime compound 1 an the α,β-unsaturated aldehyde 2 are contacted in a suitable solvent in the presence of a secondary amine. The compounds are contacted for a sufficient period of time to allow the formation of an N-hydroxypyrrole compound 3
揭示了一种形成吡咯化合物的过程。该过程包括将α-羰基肟化合物1与α，β-不饱和醛2接触。化合物1中的R1和R2分别独立地选自H、硅基团、脂肪基、脂环基、芳香基、芳基脂肪基和芳基脂环基组成的群。脂肪、脂环、芳香、芳基脂肪基和芳基脂环基包括0到约3个来自N、O、S、Se和Si组成的杂原子。醛2中的R3选自H、硅基团、脂肪基、脂环基、芳香基、芳基脂肪基和芳基脂环基组成的群。脂肪、脂环、芳香、芳基脂肪基和芳基脂环基包括0到约3个来自N、O、S、Se和Si组成的杂原子。在适当的溶剂中，在次胺的存在下，将α-羰基肟化合物1和α，β-不饱和醛2接触。这些化合物接触一段足够的时间以允许形成N-羟基吡咯化合物3。
