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A new convenient synthesis of trisubstituted 1,3-dioxole-4-carboxylates from methyl 2-diazo-3-oxobutyrate and aldehydes

✍ Scribed by Miguel E. Alonso; A.Wladimir Chitty

Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
263 KB
Volume
22
Category
Article
ISSN
0040-4039

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a b s t r a c t Convenient synthesis of 2-amino-1,5-disubstituted and 2-amino-1,4,5-trisubstituted imidazoles has been reported using readily available starting materials and simple reagents under mild conditions. Guanylation of 1-amidino-3-trityl-thioureas 1 and 7 using mercury(II) chloride (Cautio