Diels-Alder reactions of 2-alkynoyl chlorides with cyclopentadiene: a reinvestigation
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چکیده
منابع مشابه
Diels-Alder Reaction of Cyclopentadiene with Maleic Anhydride
Introduction In 1950, the chemists Otto Paul Hermann Diels, from Germany, and Kurt Alder, originally born in Prussia and then moved to Germany after World War I, received the Nobel Prize in chemistry for the discovery of a new way to synthesize cyclic molecules. Aptly titled the Diels-Alder Cycloaddition Reaction, this new mechanism allowed conjugated dienes to undergo addition reactions with a...
متن کاملAppendix 1. Diels-Alder Reactions
One of the most efficient methods (high yield, controlled stereochemistry, diverse functionality) to construct rings from smaller fragments is via cycloaddition reactions. The reverse reaction, namely splitting of a ring into smaller fragments is termed a cycloreversion reaction is also an important synthetic tool. (For example, in the present experiment it is the cracking of cyclopentadiene di...
متن کاملDiels–Alder reactions in water*
This review illustrates how water, as an environmentally friendly solvent, can have significant additional benefits when it is used as a solvent for the Diels–Alder reaction. The mechanism by which the unique properties of water enhance the rate and selectivity are discussed. Also, possibilities for the achievement of further increases in rate and enantioselectivity of aqueous Diels–Alder react...
متن کاملDiels-Alder reactions of quinone sulfoxides
The Diels-Alder reaction has often been used to construct polycyclic quinones from either benzoquinones or naphthoquinones.' This strategy has led to elegant syntheses of certain anthracyclines and also many other acetate-derived compounds. Several researchers, most notably Gesson and Brassard, have determined that the presence of a chlorine or bromine atom on the starting quinone framework per...
متن کاملThe first intramolecular silene Diels-Alder reactions.
The synthesis of silaheterocycles through the first examples of an intramolecular silene Diels-Alder reaction is described.
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ژورنال
عنوان ژورنال: The Journal of Organic Chemistry
سال: 1983
ISSN: 0022-3263,1520-6904
DOI: 10.1021/jo00163a036