Investigation of the one‐pot synthesis of  N ‐(5,6,7,8‐tetrahydro‐7,7‐dimethyl‐2,5‐dioxo‐2 H ‐1‐benzopyran‐3‐yl‐2,5‐dioxo‐2 H ‐1‐benzopyran‐3‐yl)benzamide | Zendy

Kočevar Marijan | Zendy; Polanc Slovenko | Zendy; Verček Bojan | Zendy; Tišler Miha | Zendy

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Investigation of the one‐pot synthesis of N ‐(5,6,7,8‐tetrahydro‐7,7‐dimethyl‐2,5‐dioxo‐2 H ‐1‐benzopyran‐3‐yl‐2,5‐dioxo‐2 H ‐1‐benzopyran‐3‐yl)benzamide

Author(s) -

Kočevar Marijan,

Polanc Slovenko,

Verček Bojan,

Tišler Miha

Publication year - 1990

Publication title -

liebigs annalen der chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.825

H-Index - 155

eISSN - 1099-0690

pISSN - 0170-2041

DOI - 10.1002/jlac.199019900195

Subject(s) - dimedone , benzopyran , chemistry , triethyl orthoformate , acetic anhydride , derivative (finance) , hippuric acid , organic chemistry , acetic acid , medicinal chemistry , catalysis , urine , biochemistry , financial economics , economics

A detailed investigation of the reaction of hippuric acid ( 2 ) with dimedone ( 1 ) and triethyl orthoformate or other one‐carbon sources in acetic anhydride yielding the benzopyran derivative 3 and many byproducts is described. An explanation of this complex process, several attempts to optimize it, and some new approaches to 3 are given.

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