6973-21-3Relevant academic research and scientific papers
Method of producing alkyl substituted 5-amidotetrazoles
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, (2008/06/13)
In a process for the production of Alkyl substituted 5-amidotetrazole compounds represented by the formula: STR1 wherein A represents NHX or NRR' X represents a lower alkyl group R represents a lower alkyl group, and R' represents a lower alkyl group. reacts 5-aminotetrazole with an alkyl isocyanate or a dialkyl carbamoyl halide in a polar solvent.
Substituted 5-amidotetrazoles
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, (2008/06/13)
In a process for the production of cellular products comprising thermoplastic or rubber materials the blowing agents employed have the formula: STR1 wherein A represents NHX, NRR' or OR X represents H or a lower alkyl group, R represents a lower alkyl group, and R' represents a lower alkyl group. The novel blowing agents provide high gas yields and have high decomposition temperatures while forming only inert nitrogen gas. They are particularly suitable for the production of cellular products from high temperature thermoplastic materials such as polycarbonates.
Reactions of Alkyl Isocyanates and Chlorosulfonyl Isocyanate with 1H-Tetrazol-5-amine and Conversion of Reaction Products to (1H-Tetrazol-5-yl)ureas
Denny, George H.,Cragoe, Edward J.,Rooney, Stanley C.,Springer, James P.,Hirshfield, Jordan M.,McCauley, James A.
, p. 1662 - 1665 (2007/10/02)
5-Amino-N-alkyl-1H-tetrazole-1-carboxamides 2-6 were prepared by reaction of alkyl isocyanates with 1H-tetrazol-5-amine (1) and thermally isomerized to (1H-tetrazol-5-yl)ureas 7-11.The parent compound of the former series, 5-amino-1H-tetrazole-1-carboxamide (12), was prepared by treatment of 1 with aqueous isocyanic acid, and the parent compound of the latter series, (1H-tetrazol-5-yl)urea (13), was prepared either by heating 12 or by hydrolysis of 5-azido-2H-1,2,4,6-thiatriazin-3(4H)-one 1,1-dioxide (14).X-ray crystallographic studies were used to establish the structures of the octyl derivative 4 and the thiatriazine 14.
