Bis(pentamethylcyclopentadienyl)actinide alkyls: facile activation of carbon monoxide, carbon-carbon double bond formation, and the production of unusual oxygen-bonded migratory insertion products

1978 ◽  
Vol 100 (22) ◽  
pp. 7112-7114 ◽  
Author(s):  
Juan M. Manriquez ◽  
Paul J. Fagan ◽  
Tobin J. Marks ◽  
Cynthia Secaur Day ◽  
Victor W. Day
Keyword(s):  
Carbon Monoxide ◽  
Double Bond ◽  
Bond Formation ◽  
Carbon Double Bond ◽  
Migratory Insertion

Neodymium-Promoted Highly Selective Carbon–Carbon Double Bond Formation of Ketones with Allyl Halides in the Presence of Diethyl Phosphite

Synthesis ◽  
2020 ◽  
Vol 52 (22) ◽  
pp. 3446-3451
Author(s):  
Songlin Zhang ◽  
Dengbing Xie ◽  
Yiqiong Wang ◽  
Bo Yang
Keyword(s):  
Double Bond ◽  
Bond Formation ◽  
Point Of View ◽  
Diethyl Phosphite ◽  
Reaction Conditions ◽  
One Pot ◽  
Mild Conditions ◽  
Carbon Double Bond ◽  
Allyl Halides ◽  
First Time

The carbon–carbon double bond formation via neodymium-mediated Barbier-type reaction of ketones and allyl halides in the presence of diethyl phosphite is reported for the first time. The reaction is highly α-regioselective and was conveniently carried out under mild conditions in a one-pot fashion. From a synthetic point of view, a series of conjugated alkenes were obtained in moderate to good yields in this one-pot reaction with feasible reaction conditions.

ChemInform Abstract: Carbon-Carbon Double Bond Formation from a cis-Bis(chloromethyl) Complex.

ChemInform ◽  
2010 ◽  
Vol 23 (11) ◽  
pp. no-no
Author(s):  
J. L. HUBBARD ◽  
A. MORNEAU ◽  
R. M. BURNS ◽  
O. W. NADEAU
Keyword(s):  
Double Bond ◽  
Bond Formation ◽  
Carbon Double Bond

Divergent Reactivity of CO2 and CO and Related Substrates at the Nickel Carbon Double Bond of (PCcarbeneP)Ni(II) Pincer Complexes

2018 ◽  
Author(s):  
Etienne A. LaPierre ◽  
Warren Piers ◽  
Chris Gendy
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Double Bond ◽  
Transfer Reactions ◽  
Pincer Complexes ◽  
Pincer Ligand ◽  
Group Transfer ◽  
Ligand Structure ◽  
Carbon Double Bond

The addition of carbon monoxide (CO), carbon dioxide (CO<sub>2</sub>) and isoelectronic isocyanide and isocyanates to the nickel carbene bond in PC<sub>carbene</sub>P pincer complexes is reported. For CO and CNR, irreversible group transfer reactions are observed, while for CO<sub>2</sub>, a reversible 2+2 addition to the carbene moiety occurs. The course of the CO and CO<sub>2</sub> reactions are strongly affected by the nature of the PC<sub>carbene</sub>P pincer ligand framework and a new more rigid ligand based on a 10,10-dimethyl-9,10-dihydroanthracene core was designed in order to study these reactions, illustrating the profound effect of small changes in ligand structure on reaction outcomes.

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