A convenient method for the preparation
β
Fumie Sato; Hiroshi Kanbara; Youichi Tanaka
π
Article
π
1984
π
Elsevier Science
π
French
β 193 KB
Hydromagnesiation of 3-trimethylsilyl-2-propyn-l-01 (&) followed by reaction with aldehydes or ketones affords (E)-3-trimethylsilyl-2-alken-1,4-diols (&), which can be readily dehydrated to 3-trimethylsilyl-2,5-dihydrofurans (3) by treatment with BF30Et2. The compounds 3\_ are converted to furans (5