85690-47-7

Upstream product

• 85690-41-1 2-Benzhydryl-3H-quinazoline-4-thione 
• 197524-69-9 N'-(2-azido-benzyl)-N,N-dimethyl-formamidine 
• 197524-73-5 1-dimethylamino-2,2-diphenyl-1,2-dihydroazeto[2,1-b]quinazoline 
• 96308-13-3 2-azidobenzylamine 

Relevant academic research and scientific papers

Intramolecular [2 + 2] cycloaddition of ketenimines with imines. Synthesis and chemical behaviour of azeto[2,1-b]quinazolines

Azeto[2,1-b]quinazolines 5 have been prepared by the novel intramolecular [2 + 2] cycloaddition reaction of ketenimines with imines. The applicability and limitations of the synthetic methodology, and explorations on the reactivity of compounds 5 are discussed.

STUDIES ON 4-QUINAZOLINONES. PART IX. RANEY NICKEL DESULPHURISATION OF 4-THIOQUINAZOLINES: ALUMINA CATALYSED HYDRATION OF 1,4- AND 3,4-DIHYDROQUINAZOLINES

A number of 2-substituted 3,4-dihydroquinazolines and 1,2-disubstituted 1,4-dihydroquinazolines but not the 3-mono or 2,3-disubstituted derivatives, prepared by Raney nickel desulphurisation of the corresponding 4-thioquinazolines (IV), underwent unusual