81000-03-5Relevant articles and documents
Intermediate products, methods for their preparation and use thereof
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Page 11, (2008/06/13)
Novel solid supported intermediate products of the general formula coupled to a solid polymeric support through one or both of the R1 groups or through the R4 group which are suitable for synthesis of heterocyclic compounds are discl
Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. An Attempt to Prepare Benzoylamino Substituted Azolo- and Azinopyrimidines with a Bridgehead Nitrogen Atom
Stanovnik, Branko,Bovenkamp, Henry van de,Svete, Jurij,Hvala, Ales,Simonic, Igor,Tisler, Miha
, p. 359 - 361 (2007/10/02)
Methyl 2-benzoylamino-3-dimethylaminopropenoate (2) was introduced as a new reagent for the preparation of fused pyrimidinones 4 from heterocyclic α-amino compounds in acetic acid.In this manner, derivatives of pyridopyrimidine 4a,b,f, pyrimidopyridazine 4g, pyrimidopyrimidine 4j, pyrazinopyrimidine 4k, thiazolopyrimidine 4l, pyrazolopyrimidine 4m, and 1,2,4-triazolopyrimidine 4n were prepared.
REACTIONS OF 4-ETHOXYALKYLIDENE-2-PHENYL-2-OXAZOLIN-5-ONES WITH 1,3-BINUCLEOPHILIC HETEROAROMATIC SYSTEMS
Tsuge, Otohiko,Noguchi, Michihiko
, p. 2149 - 2154 (2007/10/02)
One-pot syntheses of pyridopyrimidine and thiazolopyrimidine derivatives were achieved by the reactions of 4-ethoxyalkylidene-2-phenyl-2-oxazolin-5-ones with 2-aminopyridines and 2-aminothiazole in refluxing ethanol, respectively.In the reac
