Process for preparing 1,1-disubstituted ethylene derivative by r

Details Process for preparing 1,1-disubstituted ethylene derivative by r Process for preparing 1,1-disubstituted ethylene derivative by r

1987-12-18

1989-12-12

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

534584, 549445, 558379, 558383, 558401, 558423, 558425, 558434, 560104, 560128, 560211, 560214, 562599, 564182, 568338, 568364, 568376, 568407, 568631, 568648, 568654, 568765, 568772, 568774, 568908, 570182, 570183, 570190, 570193, 570200, 570216, 570218, 570226, 570227, 570230, C07C 3700

Patent

active

048868914

ABSTRACT:
The present invention provides a process for preparing a 1,1-disubstituted ethylene derivative of the formula ##STR1## which comprises reacting lead with a carbinol derivative of the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, X, Y, m and n are defined in the specification. The reaction is conducted more advantageously in the presence of a metal having higher ionization tendency than lead.

REFERENCES:
Fujita et al, Tetrahedron Letters, vol. 27, pp. 2139 to 2141 (1986).
Rabjohn et al, "Organic Syntheses", Collective vol. 4, pp. 268 to 270 (1963).
Schwarz et al, Chemical Abstracts, vol. 101, #130888k (1984).

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