2-Benzylthio-5,7-dimethoxy-1,2,4-triazole[1,5-a]pyrimidine(Ⅲ) is the most important intermediate of metosulam and 1,2,4-triazolopyrimidine-2-ether derivatives.
2-苄硫基-5,7-二甲氧基-1,2,4-三唑并[1,5-a]嘧啶(Ⅲ)是磺草唑胺(metosulam)及1,2,4-三唑[1,5-a]嘧啶醚类超高效除草剂的重要中间体。
It involved the converstion of vanillin into hydrazine(4) and the metalic reduction of hydrazine 4 into the intermediate vanillic amine.
以价廉易得的香草醛为起始原料,经过3步反应,高产率合成了酚羟基由对甲苯磺酰基保护的香草胺类化合物5。
