Process for the production of 1-substituted-5(4H)-tetrazolinones

Details Process for the production of 1-substituted-5(4H)-tetrazolinones Process for the production of 1-substituted-5(4H)-tetrazolinones

1994-07-29

1996-06-25

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D25704

Patent

active

055301355

ABSTRACT:
1-Substituted-5(4H)-tetrazolinones of the formula (I) ##STR1## wherein R is alkyl, haloalkyl, cycloalkyl, phenyl, substituted phenyl or aralkyl, are obtained in very good yields by reacting, in a polar solvent, an isocyanate of the formula R-NCO (II) with sodium azide (NaN.sub.3) in a molar ratio of 1:1 and in the presence of aluminum chloride (AlCl.sub.3), followed by the addition of water and a mineral acid in excess.

REFERENCES:
patent: 4618365 (1986-10-01), Covey et al.
patent: 4826529 (1989-05-01), Covey et al.
patent: 4830661 (1989-05-01), Covey et al.
patent: 4913724 (1990-04-01), Poss
patent: 5138068 (1992-08-01), Ehrenfreund et al.
J. Org. Chem, vol. 45, pp. 5130-5136, 1980, Tsuge, et al. "Reactions of Trimethylsiyl Azide with Heterocumulenes".
J. Am. Chem., vol. 81, pp. 3076-3079, 1959, Howitz, et al. "The synthesis of 1-Substituted 5 (4H) Tetrazolines".

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