Synthesis of novel type pyrazolyl and tetrazolyl isoquinolinium zwitterions

New type pyrazol‐3‐yl‐isoquinolinium hydrochloride ( 8a ) and tetrazol‐5‐yl‐isoquinolinium ( 8b ) zwitterions were synthesised. Their structures were proved by ir, pmr, cmr, ms spectra as well as X‐ray diffraction analysis of model compounds.