Alcoholysis of (2-methoxycarbonyl)ethyltin compounds |
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Authors: | Hong-Shing Cheng Tsai-Lih Hwang Chao-Shiuan Liu |
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Institution: | Department of Chemistry, National Tsing Hua University, Hsinchu Taiwan, Republic of China |
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Abstract: | Under acid or base catalysis, di(2-alkoxycarbonylethyl)tin dichlorides of various R groups, (ROCOCH2CH2)2SnCl2, can be prepared conveniently in high yield by alcoholysis of (CH3OCOCH2CH2)2SnCl2 in various alcohols, ROH (R = C2H5, C4H9, iso-C4H9, C5H11, C6H5CH2, C4H9CH(C2H5)CH2). When excess acid or base is present in the aqueous solution, (ROCOCH2CH2)2SnCl2 eliminate ROH and precipitate as C6H8O4Sn regardless of the R group. C6H8O4Sn can be converted into various (ROCOCH2CH2)2SnCl2 derivatives on dissolving in alcoholic HCl solutions. |
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