hemiacetals是什么意思

用法例句

The reaction of α-benzoylhemithioacetal with p-fluorophenylthiourea, semicarbazide and 1,8-diaminooctane were studied and 1-p-fluorophenyl-5-phenylimidazolidine-4-one-2-thione (2), 5-phenyl-1,2,4-triazine-3-one (3) and compound 4 were obtained.

研究了硫代半缩醛与对氟苯基硫脲、氨基脲及辛二胺的反应,产物的结构经红外、核磁、质谱和元素分析得到了证实。