128483-19-2

Upstream product

• 79937-21-6 2-chloro-9,10-dimethoxy-6,7-dihydro-4H-pyrimido(2,1-a)isoquinolin-4-one 
• 2393-23-9 4-methoxy-benzylamine 
• 69300-70-5 1-amino-6,7-dimethoxy-3,4-dihydro-isoquinoline 
• 95028-15-2 1-amino-3,4-dihydro-6,7-dimethoxyisoquinoline hydrochloride 
• 128483-18-1 9,10-dimethoxy-3,4,6,7-tetrahydro-2H-pyrimido(2,1-a)isoquinolin-2,4-dione 
• 25017-47-4 N-<2-(3,4-dimethoxyphenylethyl)>urea 

Relevant academic research and scientific papers

A convenient one-pot entry into novel 2-substituted-6,7-dihydro-4H-pyrimido(2,1-a) isoquinolin-4-ones

The reaction of 1-(2-arylethyl)urea (1a-1c) with malonic acid and phosphorus oxychloride gave 2-chloro-6,7-dihydro-4H-pyrimido(2,1-a)isoquinolin-4-ones (5a-5c). The condensation of 6,7-dimethoxy-1-methylthio-3,4-dihydroisoquinoline (10) with 3-imino-3-mor