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Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
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Exploiting Alkylquinone Tautomerization: Amine Benzylation.
Luis M Mori-Quiroz1, Michael D Clift1
1Department of Chemistry, The University of Kansas , 2010 Malott Hall, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States.
Organic Letters
|June 29, 2016
Summary
This study introduces a new method for synthesizing benzylic amines using alkylquinones. The reaction involves quinone methide intermediates and works under mild conditions with various amines and quinone substrates.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
Background:
- Benzylic amines are important structural motifs in pharmaceuticals and materials.
- Existing methods for benzylic amine synthesis often require harsh conditions or specialized reagents.
Purpose of the Study:
- To develop a general and mild protocol for the synthesis of benzylic amines.
- To explore the scope and limitations of the new synthetic method.
Main Methods:
- Side-chain amination of alkylquinones via in situ generated quinone methides.
- Utilized tertiary amines as catalysts in protic solvents.
- Investigated the reaction with various benzoquinones, naphthoquinones, and amine nucleophiles.
Main Results:
- Successfully synthesized benzylic amines from alkylquinones under mild conditions.
- Demonstrated compatibility with a wide range of functional groups.
- Showcased the utility of the method with diverse quinone and amine substrates.
Conclusions:
- The reported protocol offers a facile and versatile route to benzylic amines.
- The method is efficient and tolerates various functional groups, making it synthetically useful.
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