NDLI: Tandem Retro-Michael Addition-Claisen Rearrangement-Intramolecular Cyclization: One-Pot Synthesis of Densely Functionalized Ethyl Dihydropyrimidine-4-carboxylates from Simple Building Blocks

Content Provider	Scilit
Editor	Naidu, B. Narasimhulu
Copyright Year	2008
Description	Pyrolysis of suitably functionalized oxadiazoline diesters in refluxing xylenes provided ethyl 1,2-disubstituted 5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylates in moderate to good yields. Under thermal conditions, the oxadiazoline esters undergo a sequence of complex molecular reorganizations, namely retro-Michael addition, Claisen rearrangement, and cyclization, to produce the desired pyrimidinones.
Related Links	http://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-2008-1032088.pdf
Ending Page	550
Page Count	4
Starting Page	547
ISSN	09365214
e-ISSN	14372096
DOI	10.1055/s-2008-1032088
Journal	Synlett
Issue Number	04
Volume Number	2008
Language	English
Publisher	Georg Thieme Verlag KG
Publisher Date	2008-02-12
Access Restriction	Open
Subject Keyword	Organic Chemistry Retro-michael Addition Claisen Rearrangement Intramolecular Cyclization 6-dihydropyrimidine-4-carboxylates
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry

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