Synthesis 2016; 48(22): 3965-3970
DOI: 10.1055/s-0035-1562459
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Adamantylated Pyrimidines Using the Biginelli Reaction

Eugeniya A. Lashmanova
a   Samara State Technical University, 244 Molodogvardeyskaya St., 443100 Samara, Russian Federation   Email: andrey_shiryaev@yahoo.com   Email: lashmanovaea@gmail.com
,
Victor B. Rybakov
b   Moscow State University, Leninskiye Gory, 1, Bd. 3, 119991 Moscow, Russian Federation   Email: rybakov20021@yandex.ru
,
Andrey K. Shiryaev*
a   Samara State Technical University, 244 Molodogvardeyskaya St., 443100 Samara, Russian Federation   Email: andrey_shiryaev@yahoo.com   Email: lashmanovaea@gmail.com
› Author Affiliations
Further Information

Publication History

Received: 29 March 2016

Accepted after revision: 01 June 2016

Publication Date:
13 July 2016 (online)


Abstract

Using an adamantane 3-oxonitrile and adamantane 1,3-dicarbonyl compounds in the three-component Biginelli reaction promoted by trimethylsilyl chloride, adamantylated pyrimidines are prepared. The reaction with the oxonitrile leads to 6-(1-adamantyl)-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitriles and/or 2-benzylidene-3-oxonitriles depending on the type of aromatic aldehyde. 1,3-Dicarbonyl adamantane compounds give 1-adamantyl(2-thioxo-1,2,3,4-tetrahydropyrimidine-5-yl)methanones with low yields. An adamantylated 2-thioxo-1,2,3,4-tetrahydropyrimidine is used to prepare thiazolo[3,2-a]pyrimidine derivatives.

Supporting Information