Correlations between catalytic reactions of diazo compounds and stoichiometric reactions of transition-metal carbenes with alkenes. Mechanism of the cyclopropanation reaction

1984 ◽  
Vol 3 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Michael P. Doyle ◽  
John H. Griffin ◽  
Vahid Bagheri ◽  
Roberta L. Dorow
Keyword(s):  
Transition Metal ◽  
Catalytic Reactions ◽  
Diazo Compounds ◽  
Metal Carbenes

Catalytic Deoxygenative Cyclopropanation of 1,2-Dicarbonyl or Monocarbonyl Compounds via Molybdenum Catalysis

Synlett ◽  
2021 ◽  
Author(s):  
Jia-Le Wang ◽  
Chun-Xiang Zhuo
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Diazo Compounds ◽  
Recent Advances ◽  
Metal Carbenes ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

The cyclopropanation of alkenes through the transition-metal-catalyzed decomposition of diazo compounds is a powerful and straightforward strategy to produce cyclopropanes. Nevertheless, the appeal of further application of this strategy is tempered by the potentially explosive nature of the diazo substrates. Therefore, it is highly desirable to develop sustainable and operationally safe surrogates for diazo compounds. In this synpacts article, we discuss recent advances on the cyclopropane syntheses through the catalytic cyclopropanation of alkenes and metal-carbenes generated in-situ from non-diazo precursors, as well as highlight our recent progress on the unprecedented molybdenum-catalyzed deoxygenative cyclopropanation reaction of 1,2-dicarbonyl or monocarbonyl compounds.

Diverse bimetallic mechanisms emerging from transition metal Lewis acid/base pairs: development of co-catalysis with metal carbenes and metal carbonyl anions

2018 ◽  
Vol 54 (11) ◽  
pp. 1291-1302 ◽  
Author(s):  
Neal P. Mankad
Keyword(s):  
Transition Metal ◽  
Lewis Acid ◽  
Cooperative Behavior ◽  
Metal Carbonyl ◽  
Catalytic Reactions ◽  
Acid Base ◽  
Base Pairs ◽  
Rational Development ◽  
Metal Carbenes

The rational development of catalytic reactions involving cooperative behavior between two catalytic reactive sites represents a frontier area of research from which novel reactivity and selectivity patterns emerge.

Recent progress towards the transition-metal-catalyzed Nazarov cyclization of alkynes via metal carbenes

2021 ◽  
Author(s):  
Wen-Bo Shen ◽  
Guang-Xin Ru ◽  
Ting-Ting Zhang ◽  
Meng Zhang ◽  
Xiao-Lei Jiang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Cyclization Reaction ◽  
Diazo Compounds ◽  
Nazarov Cyclization ◽  
Metal Carbenes ◽  
Transition Metal Catalyzed ◽  
Tandem Cyclization ◽  
Metal Catalyzed

In recent years, transition-metal-catalyzed tandem cyclization reaction of alkyne, especially involving metal carbene intermediate, has received worthwhile interest as it bypasses the employment of risky and potentially explosive diazo compounds...

Active site engineering of atomically dispersed transition metal-heteroatom-carbon catalysts for oxygen reduction

2021 ◽  
Author(s):  
Jiawei Zhu ◽  
Shichun Mu
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction ◽  
Active Site ◽  
Catalytic Reactions ◽  
Single Atom ◽  
Carbon Catalysts

Owing to the advantage of atomic utilization, the single-atom catalyst has attracted much attention and been employed in multifarious catalytic reactions. Their definite site configuration is favorable for exploring the...

Cooperative Catalytic Reactions Using Organocatalysts and Transition Metal Catalysts: Enantioselective Propargylic Alkylation of Propargylic Esters with Aldehydes

2011 ◽  
Vol 13 (4) ◽  
pp. 592-595 ◽  
Author(s):  
Akiko Yoshida ◽  
Masahiro Ikeda ◽  
Gaku Hattori ◽  
Yoshihiro Miyake ◽  
Yoshiaki Nishibayashi
Keyword(s):  
Transition Metal ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Catalytic Reactions ◽  
Propargylic Esters

scholarly journals gem-Difluoroolefination of Diazo Compounds with TMSCF3 or TMSCF2Br: Transition-Metal-Free Cross-Coupling of Two Carbene Precursors

2015 ◽  
Vol 137 (45) ◽  
pp. 14496-14501 ◽  
Author(s):  
Mingyou Hu ◽  
Chuanfa Ni ◽  
Lingchun Li ◽  
Yongxin Han ◽  
Jinbo Hu
Keyword(s):  
Transition Metal ◽  
Cross Coupling ◽  
Diazo Compounds ◽  
Metal Free
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