Preparation and reactivity of highly functionalized organometallics at the .alpha. position of oxygen or nitrogen
Preparation and reactivity of highly functionalized organometallics at the .alpha. position of oxygen or nitrogen
复制标题
高功能化有机金属化合物的制备及其在 α 下的反应性
DOI:
10.1021/jo00055a010
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
D. Rajagopal
中科院分区:
文献类型:
--
作者:
P. Knochel;T. Chou;C. Jubert;D. Rajagopal
α-Halogenoalkyl carboxylates (FG-R 1 CH(X)(OCOR 2 ); FG=COOR, CN, SR; X=I, Br) were readily prepared by the addition of an acid chloride or bromide (R 2 COX; X=Br or Cl) to an aldehyde (FG-RCHO) in the presence of a catalytic amount of ZnCl 2 . They insert efficiently zinc dust in THF-DMSO (X=Br, 8-10 o C, 6-10 h) affording the corresponding zinc organometallics at the a position to oxygen FG-RCH(ZnBr)(OAc)