A Simple Route to Organogallium Compounds

9-Gallafluorenes were synthesized from 9-zincafluor-ene·tmeda as an alternative to 2,2′-biphenylenmercury and 2,2′-dilithiobiphenyl. The zincafluorene was found to be only one possible form of a biphenylene zinc. In dependence of the synthetic conditions a dimeric zinc bridged structure resulted, too. The gallafluorenes obtained were stabilized by nitrogen donors or formed dimers in case of 9-tert-butoxygallafluorene. That means, all of these derivatives contained tetra coordinated

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“…2,2′‐Dilithiobiphenyl, 2,2′‐dilithiobiphenyl · 2tmeda, phenylgallium dichloride, 6 , 7 ,and 10 were prepared as described in literature.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of 9‐Gallafluorenes via Group 12 Metal Biphenylenes

2018

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“…[2] While this strategy is well established for the synthesis of arylboron species due to facile migration of aryl ligands from silicon to boron, [3] there are only two examples of ligand redistribution involving boron species and alkylsilanes, both of which involve strong Lewis acidic BBr 3 or BI 3 . [4][5][6] In 1977, Nöth et al [4] reported that N(SiMe 3 ) 3 reacts with BBr 3 to afford MeBBr 2 and N(SiMe 2 Br) 3 (Scheme 1a). Following this report, Haubold et al [5] discovered that the reaction of SiMe 4 with BX 3 (X＝Br or I) resulted in the formation of Me n BX 3-n (n＝1 or 2) and Me 3 SiBr (Scheme 1b).…”

Section: Introductionmentioning

confidence: 99%

Alkyl Exchange between Alkylsilanes and Hydroborenium Ion

Wang¹,

Li²,

Wang³

2023

Chinese Journal of Organic Chemistry

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Ligand exchange between boron and silicon centers offers a convinient way for the synthesis of organoboron compounds. While such method is well-established for the preparation of arylboranes, examples of alkyl exchange between boron and silicon centers are very rare. Here, it was demonstrated that an N-heterocyclic carbene stablized hydroborenium ion readily reacts with alkylsilanes at ambient conditions to afford the corresponding alkylborenium complexes. Theoretical calculations suggest that the activation of Si-C(alkyl) bonds involves a σ-bond metathesis pathway. Keywords boron; silicon; Si-C bond; σ-bond metathesis

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A Simple Route to Organogallium Compounds

Cited by 2 publications

References 2 publications

Synthesis of 9‐Gallafluorenes via Group 12 Metal Biphenylenes

Synthesis of 9‐Gallafluorenes via Group 12 Metal Biphenylenes

Alkyl Exchange between Alkylsilanes and Hydroborenium Ion

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