Preparation of methylene-bridged hetero compounds and novel bis

Details Preparation of methylene-bridged hetero compounds and novel bis Preparation of methylene-bridged hetero compounds and novel bis

1996-11-26

1997-12-16

Ivy, C. Warren

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

Organic compounds

Phosphorus containing

568 17, 556 70, 556 71, 556 72, C07F 950, C07F 970

Patent

active

056987439

ABSTRACT:
Preparation of methylene-bridged compounds of the formula I ##STR1## where R.sup.1 to R.sup.4 are identical or different and are each saturated C.sub.1 -C.sub.30 -hydrocarbyl, unsubstituted phenyl, phenyl substituted by substituents inert under the reaction conditions, or hydrogen, E.sup.1 and E.sup.2 are identical or different and are each phosphorus, arsenic or antimony, and X is a chemical bond or oxygen by reacting a tin compound of the general formula II

REFERENCES:
Z. Naturforsch. B, vol. 38, pp. 1027-1030, 1983.
CA 103: 105083 -Abs of Chem Ber. (1985) 1186/2353-2364 118 (6) 2353-64 -"New Reagents (diphenylarsino/Methyllelhum: synthesis & prep. applications) ".

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