Stereoselective Synthesis of (E)- and (Z)-Fluoroalkenylboronates Using 2-Fluoroalkylideneiodonium Ylides Generated from (2-Fluoro-1-alkenyl)iodonium Salts

2007 ◽  
Vol 72 (25) ◽  
pp. 9617-9621 ◽  
Author(s):  
Tong Guan ◽  
Masanori Yoshida ◽  
Shoji Hara
Keyword(s):  
Stereoselective Synthesis ◽  
Iodonium Salts

Hypervalent Iodine in Synthesis 73: A New Stereoselective Synthesis of 1-(1-alkenyl) Benzotriazoles by the reaction of Alkenyl(phenyl)iodonium Salts with Benzotriazole

2002 ◽  
Vol 2002 (8) ◽  
pp. 388-391 ◽  
Author(s):  
Peng-Fei Zhang ◽  
Zhen-Chu Chen
Keyword(s):  
Present Method ◽  
Stereoselective Synthesis ◽  
Hypervalent Iodine ◽  
Iodonium Salts ◽  
Convenient Route ◽  
Conventional Methods

We report the preparation of 1-(1-alkenyl)benzotriazoles from alkenyl (phenyl)iodonium salts and benzotriazole. The reaction offers a simple and convenient route for the stereoselective synthesis of 1-(1-alkenyl)benzotriazoles. In addition, present method is particularly efficient for preparing 1-(1-alkenyl)benzotriazoles with amino-, acyl- and alkoxycarbonyl substituents, which were difficult to prepare by conventional methods.

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