5012-73-7Relevant articles and documents
Copper (II) as catalyst for intramolecular cyclization and oxidation of (1,4-phenylene)bisguanidines to benzodiimidazole-diylidenes
Anti?olo, Antonio,Carrillo-Hermosilla, Fernando,Daniliuc, Constantin G.,Mesias-Salazar, Angela,Nachtigall, Fabiane M.,Rojas, René S.,Santos, Leonardo S.,Trofymchuk, Oleksandra S.
, p. 150 - 154 (2020)
A synthetically useful approach of catalytic intramolecular cyclization and oxidation of 2′,2′-(1,4-phenylene)bis(1,3-dialkyl)guanidines (Alkyl = isopropyl 1 or cyclohexyl 2) catalyzed by copper acetate in acetonitrile under air was studied by on line mon
Highly atom efficient guanylation of both aromatic and secondary amines catalyzed by simple lanthanide amides
Li, Qinghai,Wang, Shaowu,Zhou, Shuangliu,Yang, Gaosheng,Zhu, Xiancui,Liu, Yuyu
, p. 6763 - 6767 (2008/02/11)
(Chemical Equation Presented) It is demonstrated that the cyclopentadienyl-free simple lanthanide amides [(Me3Si) 2N]3Ln(μ-Cl)Li(THF)3 (Ln = La, Sm, Eu, Y, Yb) and Ln[N(SiMe3)2]3 (Ln = Y, Yb) are highly efficient catalysts for the guanylation of both aromatic and secondary amines with a high activity under mild conditions. It is found that these catalysts are compatible with a wide range of solvents and substrates.