Me3CLi metalated LiOCH2C:CCH2OTHP (THP = tetrahydro-2-pyranyl) quant. to LiOCH2CLi:C:CHOTHP which was treated with MeOH, Me(CH2)5I, or PhCH2Cl to give LiOCH2CR:C:CHOTHP [I; R = H, (CH2)5Me, CH2Ph]. Treating I with Me3CLi gave LiOCH2CR:C:CLiOTHP [R = (CH2)5 ...
1979