反应详情

Carbon disulphide (1.52 g) was added with stirring to a cooled solution of sodium hydroxide (0.8 g) in water (1.7 ml). 2-[[[5-(Dimethylamino)methyl-2-furanyl]methyl]thio]ethanamine (4.28 g) was added slowly and when addition was complete the mixture heated at 100° for 2 hr. After cooling to below 40° ethyl chloroformate (1.94 ml) was added and stirring continued for a further 30 mins. The lower thick yellow oil was extracted with chloroform, dried and evaporated to give N,N-dimethyl-5-[[[2-(isothiocyanato)ethyl]thio]methyl]furanmethanamine as an oil RF 0.43 (silica/methanol).

1. additionwhen addition
2. temperatureheated at 100° for 2 hr
3. additionwas added
4. extractionThe lower thick yellow oil was extracted with chloroform
5. customdried
6. customevaporated