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R 2
BPin
PhI
R 2
R 2
Ph
+
R 1
Ph
R 3
R 1
R 3 R 1
a -product
Pd/PPh 3 /Ag 2 O
R 3
g -product
g : a b
E : Z b
Yield (%) c
Enantioenrichment (S.M.) d
Enantiospecificity (%) e
Entry
Compound
BPin
1
98 : 2
99 : 1
78
98 : 2
100
n Pr
Ph
( R , E )-66
CH 3
BPin
75 f
2
83 : 17
94 : 6
98 : 2
96
Ph
( R , Z )-67
BPin
3
94 : 6
78 : 22
81
98 : 2
100
H 3 C
Ph
( R , E )-68
BPin
CH 3
77 f
4
90 : 10
99 : 1
96 : 4
96
( R , Z )-69
BPin
5
n Pr
92 : 8
99 : 1
71
96 : 4
100
( R , E )-70
a Conditions as in Table 11.1.
b g : a ratio determined by 1 H NMR spectroscopy and E : Z selectivity is given for the major regioisomer.
c Isolated yield of the major isomer unless stated otherwise.
d Enantioenrichment of the starting material.
e Enantiospecificity = ee product/ee starting material.
f Isolated as mixtures of g and a products.
 
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