Thiosulfuric acid , dipotassium salt

6 were obtained from thioamides and α-bromoketones by a four-step reaction.

以硫代酰胺和α-溴代酮為原料,經(jīng)4步反應合成了N,N′-二酰基肼(6),6在POCl3作用下脫水環(huán)化,合成了7個未見文獻報道的2-芳基-5-[(4-芳基噻唑-2-基)甲基]-1,3,4-噁二唑類化合物,其結(jié)構(gòu)經(jīng)1H NMR,IR,MS和元素分析表征。

Three kinds of thioamide-group chelating fiber were synthesized by cross-linking of initial polyacrylonitrile(PAN) fiber with anhydrous hydrazine, ethylenediamine, diethylenetriamine respectively and following chemical modification with sodium sulfide.

以腈綸為起始原料,分別經(jīng)水合肼、乙二胺、二乙烯三胺預交聯(lián)后,以N,N-二甲基甲酰胺作溶劑與硫化鈉反應,合成了三種攜硫代酰胺功能基可達6。

A new chelating fiber containing thioamide group is synthesized by cross-linking of polyacrylonitrile(PAN) fiber with ethylene-dimine and following with chemical modification with sodium sulfide using DMF as solvent.

以腈綸纖維為起始原料,經(jīng)乙二胺預交聯(lián)后,以DMF作溶劑與硫化鈉反應,合成了一種硫代酰胺功能基可達6。

In the present work, the CASSCF method was employed to optimize structures of thiocamphor in the lowest five electronic states (S0, T1, S1, T2, and S2), which was followed by single-point energy calcu- lations at the MR-CI level.

運用量子化學方法優(yōu)化了硫代樟腦的最低5個電子態(tài)(S0,T1,S1,T2和S2)的結(jié)構(gòu),并計算了它們的相對能量。