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0030574622
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For selected catalytic reactions involving the cleavage of C-Ge bonds, see
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4644245555
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For a leading review on the mechanism of C-Sn bond cleavage in the Migita-Kosugi-Stille coupling reaction, see
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For a leading review on the mechanism of C-Sn bond cleavage in the Migita-Kosugi-Stille coupling reaction, see: Espinet, P.; Echavarren, A. M. Angew. Chem., Int. Ed. 2004, 43, 4704
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For selected catalytic reactions involving the cleavage of C-Pb bonds, see
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For a notable exception, in which C-Si bond activation in metal silanolates has been proposed to proceed without forming pentacoordinated silicate species, see ref 1b
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For a notable exception, in which C-Si bond activation in metal silanolates has been proposed to proceed without forming pentacoordinated silicate species, see ref 1b.
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Tobisu, M.; Onoe, M.; Kita, Y.; Chatani, N. J. Am. Chem. Soc. 2009, 131, 7506 For related processes, see: Ojima, I.; Fracchiolla, D. A.; Donovan, R. J.; Banerji, P. J. Org. Chem. 1994, 59, 7594
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0346908681
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3)-Ge bonds in allylgermanium reagents can be cleaved in the presence of Lewis acids: In;, Eds.; Wiley-VCH: Weinheim
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3)-Ge bonds in allylgermanium reagents can be cleaved in the presence of Lewis acids: Akiyama, T. In Main Group Metals in Organic Synthesis; Yamamoto, H.; Oshima, K., Eds.; Wiley-VCH: Weinheim, 2004; pp 593-619.
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79958845927
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DABCO serves as a base to generate a catalytically active Rh-OH species (see ref 10). The formation of hypervalent germanate species by the coordination of DABCO is unlikely under these conditions because (1) the boron atom in 1 is much more Lewis acidic to accept DABCO and (2) at least one halogen atom on the germanium center is reported to be required for the formation of pentacoordinated germanates using a fluoride activator (see ref 2c)
-
DABCO serves as a base to generate a catalytically active Rh-OH species (see ref 10). The formation of hypervalent germanate species by the coordination of DABCO is unlikely under these conditions because (1) the boron atom in 1 is much more Lewis acidic to accept DABCO and (2) at least one halogen atom on the germanium center is reported to be required for the formation of pentacoordinated germanates using a fluoride activator (see ref 2c).
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22
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0025405140
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For other catalytic synthesis of germoles, see
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For other catalytic synthesis of germoles, see: Tsumuraya, T.; Ando, W. Organometallics 1990, 9, 869
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Lesbani, A.; Kondo, H.; Yabusaki, Y.; Nakai, M.; Yamanoi, Y.; Nishihara, H. Chem.-Eur. J. 2010, 16, 13519
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Nishihara, H.6
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26
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79958800266
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In the present study, reactions were routinely conducted at 80 °C, since several alkynes produced germoles in lower yields at room temperature
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In the present study, reactions were routinely conducted at 80 °C, since several alkynes produced germoles in lower yields at room temperature.
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27
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79958855804
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A benzyl group is expected to be cleaved more facilely if a pentacoordinate germanate intermediate is involved based on the reactivity of corresponding silanes. See refs 2b and 7b
-
A benzyl group is expected to be cleaved more facilely if a pentacoordinate germanate intermediate is involved based on the reactivity of corresponding silanes. See refs 2b and 7b.
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28
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79958855803
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Electronic factors of alkynes may also affect the Me/Ph cleavage ratio
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Electronic factors of alkynes may also affect the Me/Ph cleavage ratio.
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29
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33
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79958805725
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A preliminary study revealed that some of the benzogermoles synthesized exhibited intense photoluminescence in the solid state. See Supporting Information for details
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A preliminary study revealed that some of the benzogermoles synthesized exhibited intense photoluminescence in the solid state. See Supporting Information for details.
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