Process for making organotin dihalides and trihalides

Details Process for making organotin dihalides and trihalides Process for making organotin dihalides and trihalides

1977-04-28

1978-12-19

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 4575E, C07F 722

Patent

active

041305736

ABSTRACT:
An organotin dihalide having the formula ##STR1## OR A MIXTURE OF THE DIHALIDE AND AN ORGANOTIN TRIHALIDE IS PREPARED BY REACTING METALLIC TIN WITH AN OLEFIN HAVING THE FORMULA ##STR2## wherein R.sub.1, R.sub.2, and R.sub.4 are hydrogen or a hydrocarbon radical and at least one of R.sub.1 or R.sub.2 contains an oxygen-containing group with a carbonyl group adjacent to the olefinic double bond and Hal is a halogen. The organotin dihalide or mixture thereof with a trihalide is reacted with an acid or mercaptan to produce a stabilizer for polyvinyl chloride polymers and the like.

REFERENCES:
patent: 3161664 (1964-12-01), Depree
patent: 3398169 (1968-08-01), Neumann et al.
patent: 3403169 (1968-09-01), Rudner et al.
patent: 3412122 (1968-11-01), Considine
patent: 3440255 (1969-04-01), Matsuda et al.
Matsuda et al., J. Organometallic Chem. V18, 95-104 (1969).
Omae et al., J. Organometallic Chem. V24, 663-666 (1970).
Matsudo et al., J. Organometallic Chem. V25, 101-109 (1970).

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