| 摘要 |
The direct reaction of metallic tin with an alpha , beta -unsaturated nitrile, hydrogen chloride, hydrogen bromide or hydrogen iodide in the presence of an alcohol yields diorgano-tin dihalides with an iminoester function in the organo groups. This iminoester function can be converted with mercaptans into the corresponding iminothioester function. The novel diorgano-tin dihalides of the formula <IMAGE> wherein X represents a chlorine, bromine or iodine atom, Y represents an oxygen or sulphur atom, R represents a hydrogen atom and/or alkyl, and R' represents a hydrocarbon group of aliphatic or aromatic character which can contain functional groups, are, for example, valuable intermediates for the production of PVC stabilisers.
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