6,7-DiMethoxyquinazoline synthesis

8synthesis methods

Product Name:6,7-DiMethoxyquinazoline
CAS Number:4101-33-1
Molecular formula:C10H10N2O2
Molecular Weight:190.2

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Carbamic acid, N-(3,4-dimethoxyphenyl)-, ethyl ester

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4101-33-1
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Yield:4101-33-1 86%

Reaction Conditions:

Stage #1: hexamethylenetetramine;ethyl (3,4-dimethoxyphenyl)carbamatewith trifluoroacetic acid at 110; for 0.183333 h;Microwave irradiation;
Stage #2: with potassium hexacyanoferrate (III);potassium hydroxide in ethanol;water; for 4 h;Reflux;

References:

Marzaro, Giovanni;Guiotto, Adriano;Pastorini, Giovanni;Chilin, Adriana [Tetrahedron,2010,vol. 66,# 4,p. 962 - 968] Location in patent:experimental part

27631-29-4 Synthesis