Chloroboration and allied reactions of unsaturated compounds. Part VI. Thiaboration, and other aspects of boron–sulphur chemistry
作者:R. H. Cragg、M. F. Lappert、B. P. Tilley
DOI:10.1039/j19670000947
日期:——
The preparation of twenty organic B–S compounds, including members of the new classes R2NB(SR′)2, (R2N)2BSR′, (R2N)BrBSR′, and (R2N)ClBSR′, is reported. Five methods were explored, and particularly noteworthy are the general methods for synthesis of borthi-ins (XBS)n, with use of dihalogenoboranes and either HgS or (Me2SiS)3. The position of B–S compounds, relative to B–N, B–Hal, etc., in boron “conversion”
制备二十种有机B–S化合物,包括新的R 2 NB(SR')2类,(R 2 N)2 BSR',(R 2 N)BrBSR'和(R 2 N)ClBSR'类,据报道。探索了五种方法,特别值得一提的是使用二卤代异戊二烯和HgS或(Me 2 SiS)3合成borthi-ins(XBS)n的通用方法。硼相对于BN,B-Hal等的B–S化合物在硼的“转化”和“位移”系列中的位置已指定。硫代硼烷已被充分表征。特别重要的是识别以930 cm为中心的三重态吸收。–1作为对其识别的诊断。摩尔折射率与计算值非常吻合。络合物BRB(SBU Ñ)2,2PY和Br 2 BSBu Ñ,PY已经制备。B–S化合物的氧化提供了第一个硼基砜。硫代硼烷相对于异氰酸酯起1,2-偶极亲油的作用,但不影响异硫氰酸酯,二氧化碳或二硫化碳。已经表征了新颖的硫脲钛硼烷。