Abstract

Stereocontrolled synthesis of substituted isonitriles from the Baylis–Hillman adducts of acrylates has been developed. Ugi reaction of these isonitriles with TMSN 3, aliphatic amines, and aldehydes or ketone affords 1-substituted tetrazoles which have been demonstrated to be suitable substrates for producing tetrazolo-fused diazepinones.

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