Detailed Studies of the Alkylation Sides of Pyridin-2-yl and 4,6-Dimethylpyrimidin-2-yl-cyanamides
作者:Alexander S. Shestakov、Amr H. Moustafa、Ivan S. Bushmarinov、Alexander S. Goloveshkin、Alexey V. Shapovalov、Khidmet S. Shikhaliev、Mikhail A. Prezent、Oleg E. Sidorenko
DOI:10.1002/jhet.2621
日期:2017.1
6‐dimethylpyrimidin‐2‐yl‐cyanamides entered into an alkylation reaction in the form of sodium salts. Pyridin‐2‐yl cyanamide 2 was alkylated at endo‐nitrogen atom of pyridine ring, while 4,6‐dimethylpyrimidin‐2‐yl cyanamide 1 was effectively alkylated at exo‐nitrogen atom of amino cyanamide group. The alkylation of cyanamides 1 and 2 with phenacylbromide gave the corresponding acetophenone derivatives. As a result
吡啶-2-基和4,6-二甲基嘧啶-2-基氰胺以钠盐的形式进入烷基化反应。吡啶-2-基氰胺2在吡啶环的内氮原子处烷基化,而4,6-二甲基嘧啶-2-基氰胺1在氨基氰胺基团的外氮原子处有效烷基化。将氰酰胺1和2与苯乙酰胺烷基化,得到相应的苯乙酮衍生物。由于它们的分子内环化反应,对于氰胺1和2-氨基-3-苯并咪唑基[1,3,(4,6-二甲基嘧啶-2-基)-5-苯基恶唑-2(3 H)-亚胺[1, 2‐ a ]吡啶(对于氰酰胺2而言)形成了。吡啶-2-基氰胺2的烷基化衍生物具有可见的蓝色荧光,其主峰在421 – 427 nm处。
Guanidin-Derivate
申请人:BAYER AG
公开号:EP0121082A1
公开(公告)日:1984-10-10
Die Erfindung betrifft neuartige Guanidin-Derivate der allgemeinen Formel
in welcher
R', R2, R3, R4 und M die in der Beschreibung angegebene Bedeutung haben,
mehrere Verfahren zu ihrer Herstellung und ihre Verwendung als Herbizide und/oder Pflanzenwachstumsregulatoren.
本发明涉及通式如下的新型胍衍生物
其中
R'、R2、R3、R4 和 M 具有描述中给出的含义、
制备它们的多种工艺及其作为除草剂和/或植物生长调节剂的用途。
Stanovnik, Branko; Stimac, Anton; Tisler, Miha, Journal of Heterocyclic Chemistry, 1982, vol. 19, p. 577 - 583
作者:Stanovnik, Branko、Stimac, Anton、Tisler, Miha、Vercek, Bojan
DOI:——
日期:——
Hori, Mikio; Tanaka, Kiyomi; Kataoka, Tadashi, Journal of the Chemical Society. Perkin transactions I, 1985, p. 2333 - 2336