Literature DB >> 25400328

Recyclization reactions of 1-alkylpyrimidinium salts.

Ruben S Vardanyan1, Gevork G Danagulyan2, Armen D Mkrtchyan2, Victor J Hruby1.   

Abstract

The reaction of 4-amino-2-benzyl-1-methyl-5-ethoxycarbonylpyrimidinium iodide (3) with n class="Chemical">alcoholic methylamine resulted in the formation of the methylimine of 2-amino-4-hydroxy-6-methylamino-5-phenylpyridine-3-carbaldehyde (5). Heating of the same pyrimidinium salt in benzylamine gave a mixture of products of two C-C recyclizations: 2-benzyl-4-benzylamino-5-carbamoylpyrimidine (7) and the benzylimine of 4-amino-2-benzyl-6-benzylaminopyrimidine-5-carbaldehyde (8). The reaction of 2-amino-1,4-dimethyl-5-ethoxycarbonylpyrimidinium iodide (10) with KOH ethanolic solution gave a single product of C-C-recyclization: 2-amino-5-acetyl-4-hydroxypyrimidine (11).

Entities:  

Keywords:  pyrimidinium salt; recyclization

Year:  2011        PMID: 25400328      PMCID: PMC4230491          DOI: 10.1515/hc.2011.025

Source DB:  PubMed          Journal:  Heterocycl Comm        ISSN: 0793-0283            Impact factor:   1.120


  4 in total

1.  Engineering unnatural nucleotide specificity for Rous sarcoma virus tyrosine kinase to uniquely label its direct substrates.

Authors:  K Shah; Y Liu; C Deirmengian; K M Shokat
Journal:  Proc Natl Acad Sci U S A       Date:  1997-04-15       Impact factor: 11.205

2.  Synthesis and SAR studies of novel triazolopyrimidine derivatives as potent, orally active angiotensin II receptor antagonists.

Authors:  E Nicolaï; G Curé; J Goyard; M Kirchner; J M Teulon; A Versigny; M Cazes; F Caussade; A Virone-Oddos; A Cloarec
Journal:  J Med Chem       Date:  1994-07-22       Impact factor: 7.446

3.  Synthesis and antiallergy activity of [1,3,4]thiadiazolo[3,2-a]-1,2,3-triazolo[4,5-d]pyrimidin-9 (3H)-one derivatives. I.

Authors:  N Suzuki; T Miwa; S Aibara; H Kanno; H Takamori; M Tsubokawa; Y Ryokawa; W Tsukada; S Isoda
Journal:  Chem Pharm Bull (Tokyo)       Date:  1992-02       Impact factor: 1.645

4.  Isomerization/Recyclization of some 5-Ethoxycarbonyl-pyrimidines.

Authors:  R S Vardanyan; V J Hruby; G G Danagulyan; A D Mkrtchyan
Journal:  J Heterocycl Chem       Date:  2005       Impact factor: 2.193

  4 in total

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