cis-Specific ring opening metathesis polymerisation (ROMP) of cyclic olefins using (pentafluorophenylimido)vanadium(v)-alkylidene, V(CHSiMe3)(NC6F5)[OC(CF3)3](PMe3)2

2020 ◽  
Vol 10 (17) ◽  
pp. 5840-5846
Author(s):  
Kotohiro Nomura ◽  
Sapanna Chaimongkolkunasin
Keyword(s):  
Ring Opening ◽  
Cyclic Olefins ◽  
Selective Ring Opening

Highly cis-specific (Z selective) ring opening metathesis polymerisation of cycloheptene has been demonstrated using V(CHSiMe3)(NC6F5)[OC(CF3)3](PMe3)2.

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

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
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