scholarly journals Pd-Catalyzed Acyl C–O Bond Activation for Selective Ring-Opening of α-Methylene-β-lactones with Amines

2017 ◽  
Vol 19 (8) ◽  
pp. 1966-1969 ◽  
Author(s):  
Christian A. Malapit ◽  
Donald R. Caldwell ◽  
Nicole Sassu ◽  
Samuel Milbin ◽  
Amy R. Howell
Keyword(s):  
Ring Opening ◽  
Bond Activation ◽  
Selective Ring Opening

S ‐Carboxyanhydrides: Ultrafast and Selective Ring‐Opening Polymerizations Towards Well‐defined Functionalized Polythioesters

2021 ◽  
Vol 133 (19) ◽  
pp. 10893-10900
Author(s):  
Yanchao Wang ◽  
Maosheng Li ◽  
Shixue Wang ◽  
Youhua Tao ◽  
Xianhong Wang
Keyword(s):  
Ring Opening ◽  
Selective Ring Opening

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.

C3-Allylation of Indoles via an Iridium-Catalyzed Branch-Selective Ring-Opening Reaction of Vinylcyclopropanes

Synthesis ◽  
2018 ◽  
Vol 51 (07) ◽  
pp. 1655-1661 ◽  
Author(s):  
Guang-Jian Mei ◽  
Feng Shi ◽  
Lei Yu ◽  
Zi-Qi Zhu ◽  
Meng Sun
Keyword(s):  
Ring Opening ◽  
Economic Approach ◽  
Whole Process ◽  
Ring Opening Reaction ◽  
Selective Ring Opening

An iridium-catalyzed branch-selective ring-opening reaction of vinylcyclopropanes with indoles has been established, which afforded C3-allylindoles in generally good to excellent yields (up to 95%). Considering that no wastes were generated in the whole process and branch-selective ring-opening reaction of vinylcyclopropanes was rarely reported, this strategy not only can be regarded as a highly atom-economic approach for C3-allylindoles, but also will greatly enrich the chemistry of vinylcyclopropanes.

Asymmetric Syntheses of Pyrrolidine and Piperidine Derivatives via Regio- and Stereo-Selective Ring-Opening Reactions of Chiral Aziridine

Heterocycles ◽  
2012 ◽  
Vol 86 (1) ◽  
pp. 371 ◽  
Author(s):  
Kimio Higashiyama ◽  
Masataka Matsumura ◽  
Emiko Kurita ◽  
Takayasu Yamauchi
Keyword(s):  
Ring Opening ◽  
Asymmetric Syntheses ◽  
Ring Opening Reactions ◽  
Selective Ring Opening

Selective Ring Opening of Methylcyclopentane and Methylcyclohexane Over Iridium Bifunctional Catalysts Supported on Surface Modified γ-Al2O3, SiO2 and Ultra Stable Y Zeolites

2011 ◽  
Vol 141 (7) ◽  
pp. 1047-1055 ◽  
Author(s):  
R. Nageswara Rao ◽  
Nansuk You ◽  
Songhun Yoon ◽  
Dipali Pravin Upare ◽  
Yong-Ki Park ◽  
...  
Keyword(s):  
Ring Opening ◽  
Bifunctional Catalysts ◽  
Y Zeolites ◽  
Selective Ring Opening ◽  
Surface Modified
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