๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A simple synthesis of some cyclic and acyclic cyclobutenediones

โœ Scribed by Lanny S. Liebeskind; Sherrol L. Baysdon

Book ID
104241283
Publisher
Elsevier Science
Year
1984
Tongue
French
Weight
227 KB
Volume
25
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis

Cyclobutenediones can be prepared from cyclic and acyclic ketones by a simple four step procedure. Having previously demonstrated that benzocyclobutenediones and alkynes could be converted to naphthoquinones through the intermediacy of phthaloylmetal complexes, 2-5 we sought to establish the same reaction sequence using cyclobutenediones and alkynes as a means of synthesizing benzoquinones. A search of the literature 6-14 showed that only certain types of cyclobutenediones were readily prepared (aryl substituted cyclobutenediones and derivatives of squaric acid and semisquaric acid).

๐Ÿ“œ SIMILAR VOLUMES

Synthesis and Antimicrobial Activity of
Synthesis and Antimicrobial Activity of Some Cyclic and Acyclic Nucleosides of Thieno[2,3-d]pyrimidines.
โœ Nasser A. Hassan; Mohamed I. Hegab; Aymn. E. Rashad; Afaf A. Fahmy; Farouk M. E. ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons โš– 27 KB ๐Ÿ‘ 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Vicinal Dilithioalkenes by Addition of L
Vicinal Dilithioalkenes by Addition of Lithium to Simple Cyclic and Acyclic Alkynes
โœ Prof. Dr. Adalbert Maercker; Dipl.-Chem. Thomas Graule; Ulrich Girreser ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 234 KB ๐Ÿ‘ 1 views

Restmann on the occasion of his 60th birthday Addition of lithium to diphenylacetylene affords, depending on the conditions, either the unstable cis-dilithiostilbenel'] or the dimeric 1,4-dilithio-l,2,3,4-tetraphenyl-1,3-b~tadiene. [~] Only the latter has found applications as a difunctional organol