129659-44-5

Upstream product

• 55138-39-1 1,3-di(4-methylphenyl)-2-thiobarbituric acid 
• 141-97-9 ethyl acetoacetate 
• 180027-74-1 7-imino-5-methyl-4-oxo-2-thioxo-1,3-di-p-tolyl-1,3,4,7-tetrahydro-2H-pyrano[2,3-d]pyrimidine-6-carbonitrile 

Downstream Products

• 110465-37-7 5,7,7-Trimethyl-2-thioxo-1,3-di-p-tolyl-1,2,3,7-tetrahydro-pyrano[2,3-d]pyrimidin-4-one 

Relevant academic research and scientific papers

A facile entry to pyrimidine derivatives: Synthesis of 5-(1, 3-dithiolan/dithian-2-ylidene) and pyrano[2, 3-d]pyrimidines

Synthesis of various pyrimidine derivatives starting from 1, 3-diaryl-2-thiobarbituric acids 1 has been described. Treatment of 1 with carbon disulfide in the presence of triethylamine followed by reaction with appropriate alkyldihalides gives the corresp

A CONVENIENT SYNTHESIS OF 1,3-DIARYL-1,2,3,4-TETRAHYDRO-5,7,7-TRIMETHYL-4-OXO-2-THIOXO-7H-PYRANOPYRIMIDINES

A novel synthesis of 1,3-diaryl-1,2,3,4-tetrahydro-5,7,7-trimethyl-4-oxo-2-thioxo-7H-pyranopyrimidines (4) and the isomeric 1,3-diaryl-1,2,3,4-tetrahydro-5,5,7-trimethyl-4-oxo-2-thioxo-5H-pyranopyrimidines (6) is described.