申请人:Cotte Alain
公开号:US20090221832A1
公开(公告)日:2009-09-03
A process for preparing ketones of the general formula (III)
where
R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, and
R
1
is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms,
by reacting alpha-oxo carboxylates of the general formula (I)
wherein
n and m is a number in the range from 1 to 6,
M
(m+)
is a cation, and
R has the meaning indicated for formula (III),
with aryl bromides of the general formula (II)
R
1
—Br (II)
where
R
1
has the meaning indicated for formula (III),
in the presence of two transition metals or compounds thereof as catalyst, is described.
一种制备一般式(III)的酮的方法,其中R是具有6到24个碳原子的可选取代的碳环芳基基团或具有5到24个碳原子的可选取代的烷基基团或具有5到24个碳原子的可选取代的杂环芳基基团,而R1是具有6到24个碳原子的可选取代的碳环芳基基团或具有5到24个碳原子的可选取代的杂环芳基基团,通过将一般式(I)的α-羰基羧酸酯与芳基溴化物(II)在两种过渡金属或其化合物存在下作为催化剂进行反应得到。