dilithium tetrachlorocuprate; ethylmagnesium bromide 1.) THF, Et2O, 2.) from -30 to -25 deg C; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Journal of Organic Chemistry, , vol. 54, # 8 p. 1948 - 1951