Synthesis, crystal, and molecular structures and conformations of naphthot[1,8-,]-1,5-dithiocin-1,1-dioxide,-1,5-dioxide,-1,1,5-trioxide and -1.1,5,5-Tetraoxide
作者:Richard S. Glass、Jeffrey L. Broeker
DOI:10.1016/s0040-4020(01)87120-9
日期:1991.1
tetraoxide in 70% yield, respectively. Oxidation of the known monosulfoxide 2 with potassium permanganate and a phase transfer catalyst in a two phase system also gave monosulfone 3 in 73% yield. The corresponding -1,1,5-trioxide: sulfoxide-sulfone 5 was selectively prepared in quantitative yield by oxidation of the monosulfone 3 with sodium metaperiodate in aqueous methanol. The crystal and molecular structures
将已知的萘并[1,8,-b,c -1,5-二硫辛,二硫醚1化学选择性氧化为相应的-1,1-二氧化物:单砜3,1,5-二氧化物:顺二亚砜4或-1,1,5,5-四氧化物:二砜6可以用高锰酸钾和相转移催化剂在两相系统中以66%的产率完成,偏高碘酸钠在甲醇水溶液中的产率为95%,或四氧化钌在70%的产率下分别为%收率。在两相体系中用高锰酸钾和相转移催化剂氧化已知的单亚砜2,也得到单砜3,产率为73%。相应的-1,1,5-三氧化二氢:亚砜-砜5通过在甲醇水溶液中用偏高碘酸钠氧化单砜3选择性地定量制备。萘并[1,8- b,c ] -1,5-二硫辛-1,1-二氧化物(3),-1,5-二氧化物(4),-1,1,的晶体和分子结构及构象通过单晶X射线分析测定了5-三氧化物(5)和-1,1,5,5-四氧化物(6)。这些化合物在单斜空间群P2 1 / c中以a = 13.184(4)Å,b = 13.182(5)Å,c