Synthesis 2021; 53(13): 2253-2259
DOI: 10.1055/a-1348-4311
paper

Synthesis of Substituted β-Styrylmalonates by Sequential Isomerization of 2-Arylcyclopropane-1,1-dicarboxylates and (2-Arylethylidene)malonates

Denis D. Borisov
a   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
,
Grigorii R. Chermashentsev
a   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
b   Department of Chemistry, Lomonosov Moscow State University, 1 Leninskie Gory, 119991 Moscow, Russian Federation
,
Roman A. Novikov
a   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
,
Yury V. Tomilov
a   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
› Institutsangaben
This work was supported by the Russian Science Foundation (grant No. 19-73-00258).


Abstract

A method has been developed for the synthesis of substituted β-styrylmalonates by conversion of 2-arylcyclopropane-1,1-dicarboxylates (ACDCs) in the presence of gallium trichloride into the corresponding­ 1,2-zwitterionic intermediates or (2-arylethyl­idene)malonates, followed by treatment with pyridine at room temperature leading to an isomerization of the emerging double bond. This method allows one to expand these reactions to include ACDCs with acceptor substituents at the aromatic ring.

Supporting Information



Publikationsverlauf

Eingereicht: 06. Dezember 2020

Angenommen nach Revision: 08. Januar 2021

Accepted Manuscript online:
08. Januar 2021

Artikel online veröffentlicht:
22. Februar 2021

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