Entry	Substrates (2a–p)	Products (3a–p)	m.p. a (°C)	Yield b %
1	2a	3a	186–188	79
2	2b	3b	183–184	62
3	2c	3c	193–195	81
4	2d	3d	183–185	75
5	2e	3e	168–179	77
6	2f	3f	189–191	73
7	2g	3g	195–197	65
8	2h	3h	178–179	82
9	2i	3i	168–170	61
10	2j	3j	199–201	85
11	2k	3k	210–212	78
12	2l	3l	189–191	68
13	2m	3m	167–169	71
14	2n	3n	179–181	77
15	2o	3o	205–207	84
16	2p	3p	223–225	80
a Melting point of products 3a–p; b isolated yield of products 3a–p.