Indium(III) triflate catalyzed tandem azidation/1,3-dipolar cycloaddition reaction of ω,ω-dialkoxyalkyne derivatives with trimethylsilyl azide
The azidation reaction of dialkyl acetal derivatives with trimethylsilyl azide (TMSN3) was efficiently catalyzed by 1-5 mol % of In(OTf) 3. The major product differed depending on the substrate structure and molar ratio of TMSN3
CONVERSION OF ACETALS INTO MONOTHIOACETALS, α-ALKOXYAZIDES AND α-ALKOXYALKYL THIOACETATES WITH MAGNESIUM BROMIDE
Magnesium bromide in ether has been found to be a very mild and highly efficient reagent for the conversion of acetals into the corresponding monothioacetals, α-alkoxyazides and α-alkoxyalkyl thioacetates.
Kim, Sunggak,Park, Jung Ho,Lee, Sangphil
p. 6697 - 6700
(2007/10/02)
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