Role of orbital symmetry in transition metal promoted ring opening reactions of methylenecyclopropanes and cyclobutenes

1984 ◽  
Vol 93 (4) ◽  
pp. 729-739
Author(s):  
Ashoka G. Samuelson
Keyword(s):  
Transition Metal ◽  
Ring Opening ◽  
Orbital Symmetry ◽  
Ring Opening Reactions

Recent Advances in Transition Metal Catalyzed C-H Functionalization Reactions Involving Aza/Oxabicyclic Alkenes

Synthesis ◽  
2021 ◽  
Author(s):  
Masilamani Jeganmohan ◽  
Pinki Sihag
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Ring Opening ◽  
Bond Activation ◽  
Considerable Progress ◽  
Double Bonds ◽  
Facial Selectivity ◽  
Ring Opening Reactions ◽  
Metal Catalyzed

Bicyclic alkenes, including Oxa- and azabicyclic alkenes can be readily activated by using transition-metal complexes with facial selectivity, because of the intrinsic angle strain on carbon-carbon double bonds of these unsymmetrical bicyclic systems. During last decades considerable progress has been done in the area of ring-opening of bicyclic strained ring by employing the concept of C-H activation. This Review comprehensively compiles the various C-H bond activation assisted reactions of oxa- and azabicyclic alkenes, viz., ring-opening reactions, hydroarylation as well as annulation reactions.

Hydrolytic ring opening reactions of anhydrides for first row transition metal dicarboxylate complexes

Polyhedron ◽  
2007 ◽  
Vol 26 (15) ◽  
pp. 4518-4524 ◽  
Author(s):  
Abhilasha M. Baruah ◽  
Anirban Karmakar ◽  
Jubaraj B. Baruah
Keyword(s):  
Transition Metal ◽  
Ring Opening ◽  
Ring Opening Reactions

scholarly journals The preparation and properties of 1,1-difluorocyclopropane derivatives

2021 ◽  
Vol 17 ◽  
pp. 245-272
Author(s):  
Kymbat S Adekenova ◽  
Peter B Wyatt ◽  
Sergazy M Adekenov
Keyword(s):  
Ring Opening ◽  
Organic Molecules ◽  
Biological Importance ◽  
Ring Opening Reactions

Recently, the functionalization of organic molecules with fluorine substituents has grown rapidly due to its applications in such fields as medicine, agriculture or materials sciences. The aim of this article is to review the importance of 1,1-difluorocyclopropane derivatives in synthesis. It will examine the role of the fluorine substituents in both ring-forming and ring-opening reactions, as well as methods for obtaining difluorocyclopropanes as single enantiomers. Several examples are provided to highlight the biological importance of this class of compounds.

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