73318-99-7Relevant articles and documents
N-alkylation using sodium triacetoxyborohydride with carboxylic acids as alkyl sources
Tamura, Satoru,Sato, Keigo,Kawano, Tomikazu
, p. 101 - 103 (2018/01/05)
A versatile N-alkylation was performed using sodium triacetoxyborohydride and carboxylic acid as an alkyl source. The combination of these reagents furnished products different from those given previously by a similar reaction. Moreover, the mild conditions of our method allowed some functional groups to remain through the reaction, whereas they would react and be converted into other moieties in the similar reductive N-alkylation reported previously. Herein, we provide a new procedure for the preparation of various compounds containing nitrogen atoms.
Gold catalysis coupled with visible light stimulation: Syntheses of functionalized indoles
Cai, Shunyou,Yang, Kai,Wang, David Zhigang
supporting information, p. 2606 - 2609 (2014/06/09)
A judicious combination of Au-catalysis and synergistic visible-light stimulation formulates an exceptionally simple and mild reaction system capable of directly coupling anilines and alkynes to form multifunctionalized indoles.
Synthesis of new 1-[4-methane(amino)sulfonylphenyl]-5-[4-(aminophenyl)]-3- trifluoromethyl-1H-pyrazoles
Abdellatif, Khaled R. A.,Chowdhury, Morshed A.,Knaus, Edward E.
experimental part, p. 1707 - 1710 (2009/09/08)
(Chemical Equation Presented) A regiospecific cyclization-dehydration reaction of a 1-[4-(N-alkyl-N-(tert-butyloxycarbonyl)amino)-phenyl]-4,4,4- trifluorobutane-1,3-done with a 4-aminosulfonyl-, or 4-methylsulfonyl-, phenylhydrazine hydrochloride in refluxing ethanol proceeded with simultaneous loss of the N-tert-butyloxycarbonyl protecting group to afford a group of 1-(4-methanesulfonylphenyl or 4-aminosulfonylphenyl)-5-[4-(N-alkylaminophenyl)]- 3-(trifluoromethyl)-1H-pyrazoles (6). Subsequent reaction of the pyrazole 6 (R1 = R2 = Me) with nitric oxide (40 psi) proceeded via a N-methylamino-N-diazen-1-ium-1,2-diolate intermediate that undergoes protonation of the more basic diazen-1-ium-1,2-diolate N2-nitrogen and then loss of a nitroxyl (HNO) species to furnish the N-nitroso product 7.