Carbene Insertion into the Carbon-Mercury Bond. Formation of Stable Dichlorocarbene Insertion Products which Undergo an Unusual Thermal Breakdown

1964 ◽  
Vol 86 (3) ◽  
pp. 524-525 ◽  
Author(s):  
John A. Landgrebe ◽  
Ronald D. Mathis
ChemInform ◽  
2015 ◽  
Vol 46 (43) ◽  
pp. no-no
Author(s):  
Ying Xia ◽  
Sheng Feng ◽  
Zhen Liu ◽  
Yan Zhang ◽  
Jianbo Wang

2017 ◽  
Vol 53 (18) ◽  
pp. 2697-2700 ◽  
Author(s):  
Chuanle Zhu ◽  
Pengquan Chen ◽  
Rui Zhu ◽  
Zhiming Lin ◽  
Wanqing Wu ◽  
...  

Inhibiting the general 1,2-migration process of ylide intermediates, a new palladium-catalyzed carbene insertion into NN bonds affords various N,N-disubstituted hydrazones.


2011 ◽  
Vol 1 (2) ◽  
pp. 153 ◽  
Author(s):  
Nicole M. G. Franssen ◽  
Annemarie J. C. Walters ◽  
Joost N. H. Reek ◽  
Bas de Bruin

2015 ◽  
Vol 127 (27) ◽  
pp. 8002-8005 ◽  
Author(s):  
Ying Xia ◽  
Sheng Feng ◽  
Zhen Liu ◽  
Yan Zhang ◽  
Jianbo Wang

2018 ◽  
Vol 54 (81) ◽  
pp. 11419-11422 ◽  
Author(s):  
Zhenxing Liu ◽  
Jingfeng Huo ◽  
Tianren Fu ◽  
Haocheng Tan ◽  
Fei Ye ◽  
...  

Pd(0)-Catalyzed formal carbene insertion into Si–H bonds has been achieved as an efficient method for C(sp3)–Si bond formation.


2021 ◽  
Author(s):  
Marc Garcia-Borràs ◽  
S. B. Jennifer Kan ◽  
Russell D. Lewis ◽  
Allison Tang ◽  
Gonzalo Jiménez-Osés ◽  
...  

<div><div><div><p>A cytochrome c heme protein was recently engineered to catalyze the formation of carbon–silicon bonds via carbene insertion into Si–H bonds, a reaction that was not previously known to be catalyzed by a protein. High chemoselectivity towards C–Si bond formation over competing C–N bond formation was achieved, although this trait was not screened for during directed evolution. Using computational and experimental tools, we now establish that activity and chemoselectivity are modulated by conformational dynamics of a protein loop that covers the substrate access to the iron-carbene active species. Mutagenesis of residues computationally predicted to control the loop conformation altered the protein’s chemoselectivity from preferred silylation to preferred amination of a substrate containing both N–H and Si–H functionalities. We demonstrate that information on protein structure and conformational dynamics, combined with knowledge of mechanism, leads to understanding of how non-natural and selective chemical transformations can be introduced into the biological world.</p></div></div></div>


ChemInform ◽  
2011 ◽  
Vol 42 (39) ◽  
pp. no-no
Author(s):  
Nicole M. G. Franssen ◽  
Annemarie J. C. Walters ◽  
Joost N. H. Reek ◽  
Bas de Bruin

2021 ◽  
Author(s):  
Marc Garcia-Borràs ◽  
S. B. Jennifer Kan ◽  
Russell D. Lewis ◽  
Allison Tang ◽  
Gonzalo Jiménez-Osés ◽  
...  

<div><div><div><p>A cytochrome c heme protein was recently engineered to catalyze the formation of carbon–silicon bonds via carbene insertion into Si–H bonds, a reaction that was not previously known to be catalyzed by a protein. High chemoselectivity towards C–Si bond formation over competing C–N bond formation was achieved, although this trait was not screened for during directed evolution. Using computational and experimental tools, we now establish that activity and chemoselectivity are modulated by conformational dynamics of a protein loop that covers the substrate access to the iron-carbene active species. Mutagenesis of residues computationally predicted to control the loop conformation altered the protein’s chemoselectivity from preferred silylation to preferred amination of a substrate containing both N–H and Si–H functionalities. We demonstrate that information on protein structure and conformational dynamics, combined with knowledge of mechanism, leads to understanding of how non-natural and selective chemical transformations can be introduced into the biological world.</p></div></div></div>


2015 ◽  
Vol 54 (27) ◽  
pp. 7891-7894 ◽  
Author(s):  
Ying Xia ◽  
Sheng Feng ◽  
Zhen Liu ◽  
Yan Zhang ◽  
Jianbo Wang

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