HCID 14972071, compound → HCID 70034970, compound

Participants

Reaction Steps

A solution of 1.48 g (3.5 mmol) of the tetrazolone from Example 5, 1.51 g of (1-phenylpyrazol-4-yl)tributylstannane and 0.2 g of tetrakis(triphenylphosphine)palladium(0) in 20 ml of anhydrous toluene was stirred at 70° C. for 2 hours and then refluxed for 2 hours. The solvent was distilled off and the residue was chromatographed over silica gel (cyclohexane:methyl tert-butyl ether mixture 1:1), giving 0.24 g of the title compound of m.p. 152-153° C.

Provenance & Evidence