| 摘要 |
<p>1,167,304. Organo-tin compounds. M. & T. CHEMICALS Inc. 3 Jan., 1967 [3 Jan., 1966], No. 342/67. Heading C2J. The invention comprises organo-tin compounds of the general formula {[NC(CH 2 ) m ] n Sn(G) p } q O r-1 where m is an integer of at least 2, n is an integer of 1 to 3, G is -SR or -CO.OR, wherein R which may bear non-reactive substituents is alkyl, alkenyl, cyclo-alkyl, aralkyl, aryl, or alkaryl, p is an integer of from 1 to 3, q and r is each 1 or 2, and n, p, q and r-1 are such that the tin atom has a tetra-valent structure. Specific compounds claimed per se are (NC(CH 2 . CH 2 ) 2 .S n (SCH.CO.O.iso-octyl) 2 {(NC.CH 2 .CH 2 ) 2 . Sn(O.CO.CH : CH.CO.O .cyclohexyl)} 2 O, and {(NC . CH 2 . CH 2 ) 2 Sn . O. CO. CH(C 2 H 5 ).C 4 H 9 } 2 O. The organo-tin compounds may be prepared by reacting a compound of the formula HSR or H.CO.OR with an organo-tin charge of the general formula {[NC.(CH 2 ) m ] n Sn(OH) x-1 }yO z-1 , in which x, y and z is each 1 or 2, and n, x-1, y, and z-1 are such that the tin atom has a tetravalent structure. Organo-tin compounds of the less general formula [NC.(CH 2 ) m ] n Sn(G) 4-n where G is -SR or a mono-valent acyloxy radical may be prepared in the case when G is - SR by reacting in the presence of an acid acceptor (e.g. triethylamine or pyridine) a compound of the formula H.SR with an organo-tin halide of the formula [NC(CH 2 ) m ] n SnX 4-n where X is Cl, Br or I, and in the case when G is acyloxy by reacting the same type of organo-tin halide with a metal salt of a carboxylic acid, the salt being selected so that the resulting metal halide is less soluble than the organo-tin product in the reaction medium. The thallium and silver salts are mentioned and the compounds specified as being prepared include [NC(CH2) m ] 3 Sn.O.COCH 3 .</p> |
