HCID 57086168, compound → HCID 57277654, compound

Participants

Reaction Steps

To an ether solution of dimethylcopper-lithium obtained by using 8.41 ml of 1.4 M diethyl ether solution of methyllithium, 1.16 g of copper (I) iodide and 15 ml of diethyl ether was added at -30° C. under nitrogen stream 700 mg of 3-trifluoromethanesulfonyloxy-3-cyclopenten-1-yl (t-butyldimethylsilyl) ether and the resulting mixture was stirred for 1 hour. The reaction liquid obtained was after-treated and purified in the same manner as in (1) of the intermediate preparation example 1 to obtain 176 mg of 3-methyl-3-cyclopenten-1-yl (t-butyldimethylsilyl) ether. Yield 41%

Provenance & Evidence