Table 1. Optimization of Reaction Conditions^a.

Entry	Variation of standard condition	Yieldb
1	None	85%(E/Z = 1:2)
2	K2CO3 instead of LiOH	29%
3	TMG instead of LiOH	72%
4	Pd(PPh3)2Cl2 instead of Pd(PPh3)4	79%
5	Pd2(dba)3 instead of Pd(PPh3)4	19%
6	MeCN instead of THF	43%
7	no XantPhos	28%
8	no (o–OMe)Ph2PPh	72%
9	no Pd(PPh3)4	N.D.
10	in the dark	N.D.
11	no LiOH	trace
12	0.3 mmol scale	91%c(E/Z = 1:2)

^aReaction conditions: 1 (0.30 mmol), 2 (0.15 mmol), 3 (0.45 mmol), Pd(PPh₃)₄ (1.5 mol%), XantPhos (8 mol%), [(o-OMe)Ph]₂PPh (8 mol%), LiOH (0.15 mmol), THF (0.1 M), λ_max = 440 nm Kessil (40 W), N₂, RT – 40 °C, 6 h.

^bGC yield with 1,3,5-trimethylbenzene as internal standard.

^c12 h, isolated yield. N.D., not detected.