New type of quinone-quinone complexation in the reaction of 2,5-dichloro-1,4-benzoquinone with morpholine at high pressure
β Scribed by S. V. Chapyshev; T. Ibata
- Book ID
- 112537697
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 182 KB
- Volume
- 45
- Category
- Article
- ISSN
- 1573-9171
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π SIMILAR VOLUMES
Several methods are available for the synthesis of coumarin ring systeml. We nQy report a new method for the synthesis of coumarins by oxidative cyclisation of some substituted 2allylphenols by 2,3=dichloro-5,6-dicyano-1,4-bensoguinone 0). 7-Allyloxy-3-methylflavone2 on Claisen rearrangement b vacu
Asymmetric induction in the high pressure (15 kbar, 1.5 GPa) Duels-Alder reactlon of e-benzoqulnone with choral 2,4-pentadienoic acid derivatives is evaluated The reactions afford 4a,5,8,8a-tetrahydro-1,4-naphthalenedlones in up to 50% enantlomenc excess.