(1) By the reaction of a mixture of an amine hydrochloride,carbon disulfide,and aqueous sodium hydroxide directly with a halide,series of esters of mono- and disubstituted dithiocarbaniic acid was prepared.(2) Some ethylene bis-dithiocarbamic esters were prepared by allowing the disodium ethylem bis-dithiocarbatnates to react separately with 3-chloroallyl chloride, 2-chloroallyl chloride,β-bromopropionic acid.The physical constants and yields of the compounds mentioned are tabulated in Table 1 (with English) of the Chinese text(p.51).