申请人:NIPPON ZEON CO., LTD.
公开号:EP0415745A2
公开(公告)日:1991-03-06
Disclosed is a process for producing an α,β-unsaturated carbonyl compound represented by the formula [II]:
wherein R₁, R₂, R₃ and R₄ each represents a hydrogen atom or a hydrocarbon residue and may be linear or may form a ring in optional combination thereof and total carbon atom number of R₁, R₂, R₃ and R₄ is 12 or less, which comprises contacting oxygen with an alkenyl compound represented by the formula [I]:
wherein R₁, R₂, R₃ and R₄ are as defined above and X represents a trihydrocarbylsilyl group or an acyl group in the presence of a platinum group metal-supporting catalyst.
本发明公开了一种生产由式[II]表示的α,β-不饱和羰基化合物的工艺:
其中R₁、R₂、R₃和R₄各自代表一个氢原子或一个烃残基,可以是线性的或可以组成一个环的任选组合,且R₁、R₂、R₃和R₄的碳原子总数为12或更少,该工艺包括将氧与式[I]代表的烯基化合物接触:
其中 R₁、R₂、R₃ 和 R₄ 如上文所定义,X 代表三烃基硅烷基团或酰基。