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1)  Substituted selenourea
取代硒脲
2)  substituted ureas
取代脲
1.
Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC).
用二(三氯甲基)碳酸酯(BTC)代替光气,“一锅法”合成了8种取代脲类除草剂,产物结构经元素分析、IR确证。
3)  substituted urea
取代脲
1.
A series of substituted ureas with herbicidal activities were svnthesized by reac- tion of N-substituted trichloroacetamides with amines in the catalysis of inorganic base.
在碱性条件下,以N—取代三氯乙酰胺与2种胺反应,合成了8种取代脲类除草剂。
4)  substituted glycoluril
取代甘脲
1.
Under the acid or base condition, we have prepared some substituted glycolurils by using of urea and α-diketone.
由α-二酮和尿素在酸或碱的催化下制得一系列取代甘脲(W_1和W_2),并对W_1和W_2进行的~1H NMR、~(13)CNMR、和MS分析表明我们合成得到了目标产物。
5)  substituted phenylurea
取代苯脲
6)  disubstituted urea
二取代脲
1.
The Rh-DMImBF 4/SiO 2-gel ionic liquid catalyst was prepared through sol-gel method, and its catalytic activity in synthesis of N,N′ -disubstituted ureas by oxidative carbonylation of amines was measured.
采用溶胶 凝胶法制备了硅胶负载Rh(PPh3 ) 3 Cl 离子液体催化剂Rh DMImBF4/SiO2 gel,并对其催化胺类化合物氧化羰化制二取代脲反应的活性进行了考察 。
补充资料:硒脲
分子式:
分子量:
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性质:白色或微带红色针状晶体。熔点200℃(分解)。遇光和空气易分解。溶于水。微溶于乙醇。有毒!用于电子工业。可由硒化氢与氨基氰作用而制得。

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