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A novel reaction of 1-phosphonyloxy-F-1-alkenephosphonates: Highly effective method for the synthesis of α,gb-unsaturated F-carboxylic acid derivatives

✍ Scribed by Takashi Ishihara; Yasuhiro Yamasaki; Teiichi Ando

Publisher
Elsevier Science
Year
1986
Tongue
French
Weight
119 KB
Volume
27
Category
Article
ISSN
0040-4039

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✦ Synopsis

1-Phosphonyloxy-I-1-alkenephosphonates, easily prepared fromE-alkanoic acid chlorides and triethyl phosphite, undergo a unique fluoride ion-catalyzed reaction with primary and secondary amines or alcohols to afford the corresponding a,&unsaturated Ecarboxylic acid derivatives in excellent yields, along with diethyl fluorophosphate and phosphite.

&B-Unsaturated carboxylic acid derivatives are one of the most valuable compounds in organic synthesis and a variety of methods have been developed so far for their preparation.

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