A nucleophile is alkylated by the action of an alkyl propargyl xanthate in the presence of an acid at a temperature of 0-300 degrees C. In particular, the nucleophile is of formula H-X (II) and the xanthate is of formula R3-C IDENTICAL C-CR1R2-S-CS-Y-R (I). X = the residue of an organic or mineral product; R = the residue of a primary, secondary or tertiary alcohol, which may carry other functions which may be protected; R1, R2, R3 = H, 1-20C straight or branched alkyl; Y = a chalcogen. Compounds of formula (I), with the proviso that if R1, R2, and R3 all = H, and Y = oxygen, then R has at least 2 C atoms, are claimed per se.
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机译：在酸的存在下，在0-300摄氏度的温度下，通过炔丙基黄原酸烷基酯的作用将亲核试剂烷基化。特别是，亲核试剂的分子式为HX（II），黄药的分子式为R3-C。 C-CR1R2-S-CS-YR（I）。 X =有机或矿物产品的残留物; R =伯，仲或叔醇的残基，其可以具有可以被保护的其他功能; R 1，R 2，R 3 ＝ H，1-20C的直链或支链烷基; Y ＝硫属元素。本身要求保护式（I）的化合物，其前提是，如果R 1，R 2和R 3全部＝ H，且Y ＝氧，则R具有至少2个碳原子。
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