science 2006, 313 , 1104-1107
DESCRIPTION
Science 2006, 313 , 1104-1107. At 1952. [Pd 2 (GaBr 4 ) 2 (arene) 2 ], where arene= benzene ( 1 ), toluene ( 2 ) and p -xylene (3 ). J. Organomet. Chem . 2004 , 689 , 489–492. BAr f = B(3,5-(CF 3 ) 2 C 6 H 3 ). 1’. J. Am. Chem. Soc. 1999, 121, 10660-10661. - PowerPoint PPT PresentationTRANSCRIPT
Science 2006, 313, 1104-1107
At 1952
[Pd2(GaBr4)2(arene)2], where arene= benzene (1), toluene (2) and p-xylene (3).
J. Organomet. Chem. 2004, 689, 489–492.
1’J. Am. Chem. Soc. 1999, 121, 10660-10661.
BArf = B(3,5-(CF3)2C6H3)
1J. Am. Chem. Soc. 2003, 125, 8436-8437.
Chem. Rev. 1995, 95, 439-473
Inorg. Chim. Acta. 1995, 229, 307-313
wine-red microcrystalsin 72% yield after recrystallization fromhot acetonitrilePd-Pd : 2.745 to 2.789 Å
The longest and the shortest Pd-Pd bonds reported are 3.185 A° and 2.391 A°
AgBF4
CH3CN
[Pd3Tr2(CH3CN)3][BF4]2
(2-CH3CN)
85 %
Pd2(dba)3
TrBF4
CD2Cl2 3 %
[Pd3Tr2(PPh3)3][BF4]2
(2-PPh3)
(2-CH3CN)
87 %
PPh3
CH2Cl2
Suzuki-Miyaura cross coupling
B(OH)2 + Br COCH3Cs2CO3
1 or (2-CH3CN) ( 3mol %)
60 oC
14 %
Chem. Commun., 2000, 1689–1690.
90 %
in CD2Cl2 showed that the resonances for the12 coordinating carbons were shifted upfield(δ= 69 to 104 ppm) relative to those of freenaphthacene (δ= 125 to 132 ppm)