Transition metal promoted alkylations of unsaturated alcohols. Alkylation of alkynols with organoalanes promoted by Group IVA metal-cyclopentadienyl compounds

DC Brown, SA Nichols, AB Gilpin…

Index: Brown,D.C. et al. Journal of Organic Chemistry, 1979 , vol. 44, # 20 p. 3457 - 3461

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Citation Number: 18

Abstract

Studies on the carbometalation of several alkynols, using bis (cyclopentadieny1)-and bis ( methylcyc1opentadieny1) titanium dichloride-organoalane systems, are reported. Alkynols of three types were examined:(1) HO (CH,), C= CH, n= 2, 3, 4;(2) HOCHRCH, C= CH, R= CH,, CzH,; and (3) HOCHzCHzC= CR, R= CH,, C2H5. Additionally, 3-butyn-1-01 was examined with bis (cyclopentadieny1) zirconium dichloride-organoalanes. Finally, the ...