Synthesis and ring-opening reactions of functionalized spiro-.DELTA.3-1,2,3-thiadiazoline 1-oxides and 1,1-dioxides. A new approach to unsymmetrically disubstituted .alpha.-chloroazines

1982 ◽  
Vol 47 (20) ◽  
pp. 3865-3870 ◽  
Author(s):  
Kurt H. Pilgram ◽  
Richard D. Skiles
Keyword(s):  
Ring Opening ◽  
New Approach ◽  
Ring Opening Reactions

Synthesis and ring-opening reactions of functionalized sultines. New approach to sparsomycin

1981 ◽  
Vol 46 (26) ◽  
pp. 5408-5413 ◽  
Author(s):  
Rob M. J. Liskamp ◽  
Hubertus J. Zeegers ◽  
Harry C. J. Ottenheijm
Keyword(s):  
Ring Opening ◽  
New Approach ◽  
Ring Opening Reactions

Synthesis of Functional Derivatives of 7,8-Dicarba-nido-undecaborate Anion by Ring-Opening of Its Cyclic Oxonium Derivatives

2007 ◽  
Vol 72 (12) ◽  
pp. 1676-1688 ◽  
Author(s):  
Marina Yu. Stogniy ◽  
Ekaterina N. Abramova ◽  
Irina A. Lobanova ◽  
Igor B. Sivaev ◽  
Vikentii I. Bragin ◽  
...  
Keyword(s):  
Ring Opening ◽  
Mechanism Of Formation ◽  
New Approach ◽  
Functional Derivatives ◽  
Ring Opening Reactions ◽  
Oxonium Derivatives ◽  
Derivatives Of

A new approach to synthesis of functional derivatives of 7,8-dicarba-nido-undecaborate anion based on ring-opening of its cyclic oxonium derivatives [10-(CH2)4O-7,8-C2B9H11] and [10-O(CH2CH2)2O-7,8-C2B9H11] with various nucleophiles was developed. Both cyclic oxonium derivatives can be obtained as single isomers by reaction of the parent anion [7,8-C2B9H12]- with mercury(II) chloride in the corresponding solvents. Mechanism of formation of the cyclic oxonium derivatives of 7,8-dicarba-nido-undecaborate anion was proposed. A series of 7,8-dicarba-nido-undecaborate derivatives with terminal carboxylic and azide functions were prepared by the ring-opening reactions of the cyclic oxonium derivatives with substituted phenolate and azide ions, respectively.

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
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