Concepedia

The Synthesis of 2‐Carbomethoxy‐2‐carbomethoxymethyl‐2,3‐dihydro‐4(1<i>H</i>)quinazolinones

Charles F. Beam, Charles A. Park, Ned D. Heindel, William P. Fives

Journal of Heterocyclic Chemistry · 1977 · 11 citations · 8 references

DOI

Concepts

Abstract

Abstract The treatment of anthranilhydrazides with dimethyl acetylenedicarboxylate resulted in enamines that cyclized to the six‐membered quinazolinones instead of the seven‐membered benzodiazepines.

References

8

Ring Transformations of Heterocycles

H. C. VAN DER PLAS · Heterocycles · 1983 · 135 citations · Full text

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Synthesis of 3,4-dihydro-1H-1,3,4-benzotriazepine-2,5-diones

Norton P. Peet, Shyam Sunder · The Journal of Organic Chemistry · 1975 · 52 citations

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Cyclization of anthranilamide-acetylenedicarboxylate adducts. A facile synthesis of 1,4-benzodiazepine-3,5-diones

Ned D. Heindel, Velmer B. Fish, Thomas F. Lemke · The Journal of Organic Chemistry · 1968 · 34 citations

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The synthesis of <i>o</i>‐Amino‐<i>N</i>‐substituted benzamides and 3‐substituted 2,4 (1<i>H</i>,3<i>H</i>)‐quinazolinediones from isatoic anhydride

Richard L. Jacobs · Journal of Heterocyclic Chemistry · 1970 · 28 citations

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Synthesis of 3,4-dihydro- and 1,4-dihydro-5H-1,3,4-benzotriazepin-5-ones

Robert W. Leiby, Ned D. Heindel · The Journal of Organic Chemistry · 1976 · 26 citations

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