Table 1.

Stannylation of CaC₂ 7 with Bu₃SnCl 8.

Entry	H2O (equiv)	Time (h)	Yield (%)a
			3	9
1	2	1	(20)	(43)
2b	2	1	(34) [36]c	(45) [32]c
3	2	6	(10)	(67)
4	2	28	0	72
5	0	28	0	65
6	12	3	[1]c	[50]c

Reactions were carried out on 0.3–1 mmol scale.

^aIsolated yields based on 8, numbers in parentheses are ¹H NMR yields.

^b10 mmol scale.

^cGC yields.