Method for preparing bis(organotin mercaptoalkanol ester) sulfid

Details Method for preparing bis(organotin mercaptoalkanol ester) sulfid Method for preparing bis(organotin mercaptoalkanol ester) sulfid

1976-11-02

1978-11-07

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260399, 260410, 2604297, C11C 300, C07F 722

Patent

active

041246187

ABSTRACT:
Organotin derivatives of mercaptoalcohol esters that correspond to the general formula ##STR1## wherein R and R' are hydrocarbon, m is 2 or 3, and p is 1 or 2 are prepared by sequentially reacting a quantity of a monoorganotin trihalide, a diorganotin dihalide or an equimolar mixture of a mono- and a diorganotin halide containing n moles of halogen with n-2 equivalent weights of a base, n-2 moles of a mercaptoalcohol, 0.5 mole of an alkali metal sulfide when p is 1 or an alkali metal disulfide when p is 2, for every mole of tin present and n-2 moles of an carboxylic acid or ester thereof. The present method offers advantages over the prior art, which teaches reacting an esterified mercaptoalcohol with an organotin halide, oxide or organostannoic acid. Compounds wherein R' is n-heptyl are unique in that they do not exhibit the disagreeable odor that characterizes this class of compounds.

REFERENCES:
patent: 2832750 (1958-04-01), Weinberg et al.
patent: 2870182 (1959-01-01), Leistner et al.
patent: 2885415 (1959-05-01), Ramsden
patent: 3565931 (1971-02-01), Brecker
patent: 3931263 (1976-01-01), Molt
patent: 3979359 (1976-09-01), Kugele et al.

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