Table 2.

Selected experimental data for the synthesis of N-phenyl-1H-indazoles 2a,b,d–h.

hydrazone 1	product 2	t (h)	yield (%)a
1a	2a	24	60
1b	2b	24	10
1c	2c	24	—b
1d	2d	39	23
1e	2e	24	39
1f	2f	48	53
1g	2g	12	16
1h	2h	24	70

^aIsolated yield. ^bProduct not obtained.