589-33-3Relevant articles and documents
Photolysis of pyridazine N-oxides; formation of cyclopropenyl ketones
Tsuchiya, Takashi,Arai, Heihachiro,Igeta, Hiroshi
, p. 550 - 551 (1972)
Irradiation of pyridazine N-oxides with primary amines in dichloromethane gives N-substituted pyrroles, suggesting that cyclopropenyl ketones are intermediates.
Nickel-Catalyzed Synthesis of N-Substituted Pyrroles Using Diols with Aryl- and Alkylamines
Singh, Khushboo,Kabadwal, Lalit Mohan,Bera, Sourajit,Alanthadka, Anitha,Banerjee, Debasis
, p. 15406 - 15414 (2019/01/04)
Herein, nickel-catalyzed sustainable strategy for the synthesis of N-substituted pyrroles using butene-1,4-diols and butyne-1,4-diols with a series of aryl-, alkyl-, and heteroarylamines is reported. The catalytic protocol is tolerant of free alcohol, halide, alkyl, alkoxy, oxygen heterocycles, activated benzyl, and the pyridine moiety and resulted in up to 90% yield. Initial mechanistic studies involving defined nickel catalyst, determination of rate, and order of reaction including deuterium-labeling experiments were performed for pyrrole synthesis.
Direct amination of secondary alcohols using ammonia
Pingen, Dennis,Mueller, Christian,Vogt, Dieter
supporting information; experimental part, p. 8130 - 8133 (2011/02/22)
Hydrogen shuttle: For the first time secondary alcohols and ammonia can be directly converted into primary amines with a selectivity of up to 99% by using a simple ruthenium/phosphine catalyst (see scheme; R1, R2= alkyl, aryl, alkenyl; M=[Ru3(CO)12]; and L=phosphine ligand).
