The reaction of 1,3-disubstituted thioureas with .ALPHA.,.OMEGA.-dibromoacyl chlorides and the formation of spiro compounds.
作者:TADASHI OKAWARA、KENTARO NAKAYAMA、TETSUO YAMASAKI、MITSURU FURUKAWA
DOI:10.1248/cpb.34.380
日期:——
5-Bromoalkyl-2-iminothiazolidin-4-ones (3) were readily synthesized from 1, 3-disubstituted thioureas (1) and α, ω-dibromoacyl chlorides (2) in 5% NaOH-CH2Cl2. Compounds 3 were converted to the corresponding spiro compounds 9 under phase-transfer conditions or with sodium ethoxide.
5-溴烷基-2-亚氨基噻唑烷-4-酮 (3) 通过在5% NaOH-CH2Cl2中将1,3-二取代的硫脲 (1) 和α,ω-二溴酰氯 (2) 反应得到。化合物3在相转移条件下或用醇钠转化为对应的螺旋化合物9。