Reaction conditions, yield, and purity of the synthesized compounds^a.

Compound	Base	Time (h)	Yield (%)	Purity (%)	Compound	Base	Time (h)	Yield (%)	Purity (%)
34	64	2	68	99.9	49	64	4	77	98.6
35	64	2	52	95.9	50	64	4	30	N.D.
36	64	2	96	99.3	51	64	4	26	98.7
37	64	2	58	99.0	52	64	4	44	99.3
38	64	2	87	99.7	53	64	4	53	98.0
39	64	3	75	99.7	54	64	4	58	96.2
40	64	3	62	98.9	55	64	4	40	99.1
41	64	3	65	97.3	56	64	4	11	97.1
42	64	3	50	98.7	57	64	5	56	95.1
43	64	3	82	96.0	58	64	5	92	99.1
44	64	3	16	99.4	59	65	3	27	96.6
45	64	3	56	98.8	60	65	3	69	98.7
46	64	3	58	97.9	61	65	3	59	97.9
47	64	3	48	97.9	62	66	4	24	97.1
48	64	3	76	99.6	63	66	3	56	98.3

^aN.D. = not determined.