Synthesis 2019; 51(02): 530-537
DOI: 10.1055/s-0037-1610270
paper
© Georg Thieme Verlag Stuttgart · New York

A Synthesis of 4-Chloro-2-(trichloromethyl)pyrimidines and Their Study in Nucleophilic Substitution

Michelle L. Trujillo-Lagunas
a   Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Toluca, C.P. 50180, México   Email: mromeroo@uaemex.mx
,
Ignacio Medina-Mercado
a   Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Toluca, C.P. 50180, México   Email: mromeroo@uaemex.mx
,
Ivann Zaragoza-Galicia
a   Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Toluca, C.P. 50180, México   Email: mromeroo@uaemex.mx
,
b   Medicinal and Natural Products Chemistry, The University of Iowa, Iowa City, IA 52242, USA
,
Moisés Romero-Ortega*
a   Departamento de Química Orgánica, Facultad de Química, Universidad Autónoma del Estado de México, Toluca, C.P. 50180, México   Email: mromeroo@uaemex.mx
› Author Affiliations
The Consejo Nacional de Ciencia y Tecnología (Grant 26659) is gratefully acknowledged and by the fellowship to Michelle Trujillo-Lagunas (EDT, SNI-III).
Further Information

Publication History

Received: 16 July 2018

Accepted after revision: 15 August 2018

Publication Date:
11 September 2018 (online)


Abstract

A convenient two-step, one-pot synthesis of 4-chloro-2-(trichloromethyl)pyrimidines starting from 2-(trichloromethyl)-1,3-diazabutadienes is described. These nitrogen heterocycles were prepared by a sequential acylation/intramolecular cyclization reaction between 2-(trichloromethyl)-1,3-diazabutadienes and acyl chlorides in the presence of triethylamine followed by treatment with POCl3. This is the first report for the synthesis of this type of 4-chloro-2-(trichloromethyl)pyrimidine derivatives and serves as a source for a wide variety of other substituted pyrimidines by nucleophilic substitution reactions.

Supporting Information