Aldol-type reactions of unmasked iodoacetic acid with carbonyl compounds promoted by samarium diiodide:: Efficient synthesis of carboxylic 3-hydroxyacids and their derivatives

被引:19
|
作者
Concellon, Jose M. [1 ]
Concellon, Carmen [1 ]
机构
[1] Univ Oviedo, Fac Quim, Dept Quim Organ & Inorgan, E-33071 Oviedo, Spain
来源
JOURNAL OF ORGANIC CHEMISTRY | 2006年 / 71卷 / 12期
关键词
D O I
10.1021/jo060118j
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An easy, direct, general, and efficient samarium diiodide-mediated preparation of 3-hydroxyacids 1 in high yield by reaction of different aldehydes or ketones with commercially available iodoacetic acid is described. The application of different esterification procedures to the crude 3-hydroxyacids so obtained afforded the corresponding 3-hydroxyesters. Also, the cyclization of crude 3-hydroxycarboxylic acids allowed the preparation of beta-lactones. A mechanism is proposed to explain the synthesis of 3-hydroxyacids 1.
引用
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页码:4428 / 4432
页数:5
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