Polozov A.; Mustaphin A.; Khotinen A.
(1992)
Cu(OTf)2 and Cu(acac)2 were found to be the most effective catalysts in the reaction of diazo compounds Ph2CN2 (1a), EtOC(O)CHN2 (lb), MeOC(O)CHN2 (1c), MeC(0)CN2C(O)OMe (1d), Cl-CH2C(O)CHN2 (1e) and CH2N2 (1f) with ...