Patent ID: 7601747
Filing Date: 2009-10-13
Classification: C07D

Abstract:
1. A process for preparation of a structure of Formula (I) wherein “X” is a C reacting in a first solvent an inorganic azide and a divalent zinc salt with a nitrile of Formula (II), where “n” of said nitrile is 2 to 9 and “X” is a C wherein “H” is chemically bonded to N 1 or N 2 position of said di-tetrazole, and “X” is a C 1 to C 3 alkyl group; isolating said di-tetrazole by recrystallization from a suitable second solvent; reacting said di-tetrazole in a third solvent with a soluble reversible or non-reversible base and 2-chloro-ethanol at a temperature in the range from about 70° C. to about 150° C. for a time period in the range from about 1 hour to about 24 hours, allowing contact of reactants, to form a reaction mixture containing a di-tetrazole diol of Formula (I); and, extracting said di-tetrazole diol of Formula (I) from the reaction mixture.