Table 1.

Pd-catalyzed hydroarylation of o-alkynyl biaryls.^a

#	Product	Time, h Yield, %b	#	Product	Time, h Yield%b	#	Product	Time, h Yield, %b
1	2a	2.5 98	7	2g	4.0 95	13	2m	5.0 87
2	2b	3.0 95	8	2h	1.0 93	14	2n	1.0 85
3	2c	1.5 96	9	2i	0.5 98	15	2o	1.5 77
4	2d	2.0 96	10	2j	3.0 93	16	2p	24 47
5	2e	0.5 79	11	2k	3.0 94	17	2q	48 30
6	2f	3.0 92	12	2l	4.0 89	18	2r	6.0 86

^aReaction conditions: 0.5 mmol of 1, 0.025 mmol of Pd(OAc)₂, 0.035 mmol of d-i-Prpf, 1ml of toluene, 120°C.

^bIsolated yields.