Literature DB >> 16178575

Synthesis of functionalized 2H-1-benzopyrans by DBU-catalyzed reactions of salicylic aldehydes with allenic ketones and esters.

Gui-Ling Zhao1, Yong-Ling Shi, Min Shi.   

Abstract

[reaction: see text] DBU-catalyzed reactions of salicylic aldehydes with 3-methylpenta-3,4-dien-2-one, 3-benzylpenta-3,4-dien-2-one, or ethyl 2-methylbuta-2,3-dienoate gave the corresponding functionalized 2H-1-chromenes in good to excellent yields and good diastereoselectivities in some cases in DMSO, respectively.

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Year:  2005        PMID： 16178575     DOI： 10.1021/ol051920v

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


  2 in total

1.  Total synthesis of (±)-bisabosqual A.

Authors:  Christopher W am Ende; Zhou Zhou; Kathlyn A Parker
Journal:  J Am Chem Soc       Date:  2012-12-28       Impact factor: 15.419

2.  Allenoate Prenucleophiles: A Triply Diastereoselective Approach to β-Hydroxy Esters Containing All-Carbon α-Quaternary Centers.

Authors:  Samantha L Maki; Pradip Maity; Shannon Dougherty; Jennifer Johns; Salvatore D Lepore
Journal:  Org Lett       Date:  2019-09-16       Impact factor: 6.072
  2 in total

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