NOVEL SYNTHESIS OF 4,5-DIHYDROSPIROPYRAZOLE- 5,2′-INDANE-1′,3′-DIONES
摘要:
A novel synthesis of 4,5-dihydrospiropyrazole-5,2'-indane-1',3'-diones 7a-n, 8a-c,e,f and 12a-f via the treatment of hydrazonoyl halides 1-3 with 2-arylidene indane-1,3-diones 6a-e respectively, is reported.