醋酸银/甲醇促进炔基膦酸酯水合制备β-羰基膦酸酯
收稿日期: 2015-02-08
修回日期: 2015-05-01
网络出版日期: 2015-07-10
基金资助
湖南省科技计划(No. 2014FJ3053)、国家自然科学基金(No. 21176061)、湖南省自然科学基金(No. 13JJ3132)、湖南省重点建设学科和衡阳市科技计划(No. 2014KJ26)资助项目.
Effective Transformation of Alkynylphosphonates into β-Ketophosphonates with a Silver(I) Catalyst
Received date: 2015-02-08
Revised date: 2015-05-01
Online published: 2015-07-10
Supported by
Project supported by the Science and Technology Planning Project of Hunan Province (No. 2014FJ3053), the National Natural Science Foundation of China (No. 21176061), the Natural Science Foundation of Hunan Province (No. 13JJ3132), the Construct Program of the Key Discipline in Hunan Province and Science and Technology Planning Project of Hengyang City (No. 2014KJ26).
报道了一种高原子经济性、高选择性合成β-羰基膦酸酯类化合物的催化水合体系. 实验发现以廉价的AgOAc作为催化剂, 甲醇作为助催化剂, 炔基膦酸酯顺利发生水合反应生成相应的目标产物, 产率优秀. 反应无需惰性气体保护, 具有良好的官能团耐受性, 杂环、卤素等官能团及杂环体系都对反应无明显影响.
关键词： 炔基膦酸酯; β-羰基膦酸酯化合物; 银催化; 水合反应
刘开建 , 欧金花 , 欧丽娟 , 刘宏伟 , 唐新德 , 李来丙 , 胡波年 . 醋酸银/甲醇促进炔基膦酸酯水合制备β-羰基膦酸酯[J]. 有机化学, 2015 , 35(9) : 1889 -1896 . DOI: 10.6023/cjoc201502015
β-Ketophosphonates are an important class of carbonyl compounds which exhibit a wide range of biological activities and outstanding metal-complexing abilities. They are building blocks in organic synthesis, especially as intermediates for the synthesis of α,β-unsaturated carbonyl compounds, chiral β-hydroxy and β-hydroxy phosphonic acids. In this paper, a cheap, simple, convenient and environmentally benign method to synthesize the β-ketophosphonates from alkynylphosphonates was developed, which can be easily prepared in one step from commercial terminal alkynes. In the presence of 10 mol% AgOAc and 4 equiv. of water in methanol at 110 ℃, a broad range of alkynylphosphonates were converted into the corresponding β-ketophosphonates in nearly equivalent conversion through silver/methanol-catalyzed hydration reaction. The presented methodology will provide new strategies for β-ketophosphonates-type natural product and drug synthesis, which has important academic significance and application value.
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