Literature DB >> 19138152

Use of 4-cyanocoumarins as dienophiles in a facile synthesis of highly substituted dibenzopyranones.

Michael E Jung1, Damian A Allen.   

Abstract

A new synthesis of dibenzopyranones 14 is reported via the Diels-Alder cycloaddition of 4-cyanocoumarins 12 with 1-silyloxydienes 10 to give the adducts 13 which are then converted into 14 in one step via treatment with base and loss of the cyano and silyloxy groups.

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Year:  2009        PMID： 19138152     DOI： 10.1021/ol802792g

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  3 in total

1.  Computational elucidation of the origins of reactivity and selectivity in non-aldol aldol rearrangements of cyclic epoxides.

Authors:  Hao Wang; K N Houk; Damian A Allen; Michael E Jung
Journal:  Org Lett       Date:  2011-05-13       Impact factor: 6.005

2.  Novel and efficient one-step parallel synthesis of dibenzopyranones via Suzuki-Miyaura cross coupling.

Authors:  Kodumuru Vishnumurthy; Alexandros Makriyannis
Journal:  J Comb Chem       Date:  2010-09-13

3.  Rh(iii)-catalyzed synthesis of dibenzo[b,d]pyran-6-ones from aryl ketone O-acetyl oximes and quinones via C-H activation and C-C bond cleavage.

Authors:  Wei Yang; Haonan Zhang; Yu Liu; Cuiman Tang; Xiaohui Xu; Jiaqi Liu
Journal:  RSC Adv       Date:  2022-05-12       Impact factor: 4.036
  3 in total

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