Ag2O-promoted ring-opening reactions of cyclopropenones with oximes

2020 ◽  
Vol 18 (30) ◽  
pp. 5822-5825
Author(s):  
Ye-Fei Yang ◽  
Xiao-Bo Huang ◽  
Wen-Xia Gao ◽  
Yun-Bing Zhou ◽  
Miao-Chang Liu ◽  
...  
Keyword(s):  
Ring Opening ◽  
Direct Route ◽  
Ring Opening Reactions

We disclosed an Ag2O-promoted unprecedented ring-opening rearrangement of cyclopropenones with oximes, providing a direct route to 1,3-oxazinones.

Exploring the ring-opening reactions of imidazo[1,5-a]quinolines for the synthesis of imides under photochemical conditions

2019 ◽  
Vol 17 (27) ◽  
pp. 6570-6573 ◽  
Author(s):  
Ya Peng ◽  
Cheng-Tao Feng ◽  
Yu-Qing Li ◽  
Feng-Xiang Chen ◽  
Kun Xu
Keyword(s):  
Ring Opening ◽  
Direct Route ◽  
Ring Opening Reactions ◽  
First Time

The photoredox ring-opening of imidazoquinolines was developed for the first time, which provides a direct route to imides.

ChemInform Abstract: Ring-Opening Reactions of Difluoro(methylene)cyclopropanes with Halogens and Amines.

ChemInform ◽  
2009 ◽  
Vol 40 (12) ◽  
Author(s):  
Xiao-Chun Hang ◽  
Qing-Yun Chen ◽  
Ji-Chang Xiao
Keyword(s):  
Ring Opening ◽  
Ring Opening Reactions

Substituent Effects in Mechanochemical Allowed and Forbidden Cyclobutene Ring-Opening Reactions

2021 ◽  
Author(s):  
Cameron L. Brown ◽  
Brandon H. Bowser ◽  
Jan Meisner ◽  
Tatiana B. Kouznetsova ◽  
Stefan Seritan ◽  
...  
Keyword(s):  
Ring Opening ◽  
Substituent Effects ◽  
Ring Opening Reactions

ChemInform Abstract: Discovery of μ-Opioid Selective Ligands Derived from 1-Aminotetralin Scaffolds Made via Metal-Catalyzed Ring-Opening Reactions.

ChemInform ◽  
2009 ◽  
Vol 40 (29) ◽  
Author(s):  
Chris Dockendorff ◽  
Shujuan Jin ◽  
Madeline Olsen ◽  
Mark Lautens ◽  
Martin Coupal ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Reactions ◽  
Selective Ligands ◽  
Metal Catalyzed

scholarly journals Stereoselective Synthesis of Tetraalkyl Cyclobutene-1,2,3,4-tetracarboxylates. Synthesis of Tetraalkyl (Z,Z)-Buta-1,3-diene-1,2,3,4-tetracarboxylates

1999 ◽  
Vol 23 (8) ◽  
pp. 512-513
Author(s):  
Issa Yavari ◽  
Farahnaz Nourmohammadian
Keyword(s):  
Ring Opening ◽  
Wittig Reaction ◽  
Stereoselective Synthesis ◽  
Intramolecular Wittig Reaction ◽  
Ring Opening Reactions ◽  
Boiling Toluene

Tetraalkyl cyclobutene-1,2,3,4-tetracarboxylates, prepared by intramolecular Wittig reaction between a vinylphosphonium salt and diethyl 2-oxobutanedioate, undergo electrocyclic ring-opening reactions, in boiling toluene, to produce highly electron-deficient 1,3-dienes.

Thiophene ring-opening reactions. Direct access to the synthesis of 1,3,4-thiadiazoline-(condenced) pyridone hybrids

Tetrahedron ◽  
2021 ◽  
pp. 131957
Author(s):  
Mohammed M. Abadleh ◽  
Ahmad H. Abdullah ◽  
Firas F. Awwadi ◽  
Mustafa M. El-Abadelah
Keyword(s):  
Ring Opening ◽  
Thiophene Ring ◽  
Direct Access ◽  
Ring Opening Reactions

Photochemical ring-opening reactions of oxirane with the Ehrenfest force topology

2021 ◽  
Vol 769 ◽  
pp. 138432
Author(s):  
Xing Nie ◽  
Michael Filatov ◽  
Steven R. Kirk ◽  
Samantha Jenkins
Keyword(s):  
Ring Opening ◽  
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.

ChemInform Abstract: Ring Formation and Ring Opening Reactions of a Dihydrothiadiazine Cycle Fused to 1,2,4-Triazole.

ChemInform ◽  
2009 ◽  
Vol 40 (13) ◽  
Author(s):  
Alexandra A. Kolodina ◽  
Alexandr V. Lesin ◽  
Yulia V. Nelyubina
Keyword(s):  
Ring Opening ◽  
Ring Formation ◽  
Ring Opening Reactions
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