25602-39-5Relevant articles and documents
Covalently bonded zwitterionic sulfamic acid onto the SBA-15 (SBA-15/PrEn-NHSO3H) reveals good Bronsted acidity behavior and catalytic activity in N-formylation of amines
Rostamnia, Sadegh,Doustkhah, Esmail
, p. 317 - 324 (2015/11/28)
Ethylenediamine-functionalization of SBA-15 with N1-(3-(trimethoxysilyl)propyl)ethane-1,2-diamine (PrEn) was then underwent covalent sulfonation over secondary and primary amine groups (SBA-15/PrEn-NHSO3H) on the surface of the mesoporous SBA-15 pore walls. Scanning electron microscope (SEM), transmission electron microscope (TEM), SEM-energy dispersive X-ray (SEM-EDX), BET surface are analysis, thermal gravimetric (TG), FT-IR spectrums and CHNS were recorded for the characterization of SBA-15/PrEn-NHSO3H. This material was studied as a novel catalyst for N-formylation of amines. Based on the results, SBA-15/PrEn-NHSO3H acted as zwitterionic IL-type heterogeneous catalyst with simple separation feature from the reaction mixture. Moreover, it exhibited excellent recyclability at least for 12 times, and a higher catalytic activity toward N-formylation.
Preparation and catalytically study of metal-organic frameworks of amine/MIL-53 (Al) as a powerful option in the rapid N-formylation condensation in neat conditions
Rostamnia, Sadegh,Karimi, Ziba
, p. 133 - 137 (2015/03/04)
This paper reports on the preparation and application of amine/MIL-53 (Al) as highly active catalysts for the N-formylation reaction. These Al-MOFs were found to be an efficient, selective and waste-free green solid catalyst for the net condensation of amines and formic acid. The catalyst can be isolated from the reaction mixture and reused at least 6 times.
Synthesis and rearrangement of N-methyl-N-(2-thiazolyl)-nitramine
Daszkiewicz,Koterzyna,Kyziol
, p. 2921 - 2927 (2007/10/03)
Methylation of N-(2-thiazolyl)-nitramine in alkaline solution gives 1,2-dihydro-3-methyl-2-nitriminothiazole which rearranges in concentrated sulphuric acid yielding small amount of 2-(N-methylamino)-5-nitrothiazole, identical with the product of rearrangement of N-methyl-N-(2-thiazolyl)-nitramine. The latter compound was obtained by the action of sodium hydride on 2-(N-methylamino)-thiazole followed by the nitration with n-butyl nitrate.