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Reductive Heterocyclization of 2-Cyanobenzophenones by the Action of NaBH4. New Efficient Synthesis of 3-Arylphthalides


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Abstract

The reduction of 2-cyclopropylcarbonyl-, 2-(thiophen-2-yl)carbonyl-, and 2-arylcarbonylbenzonitriles with sodium tetrahydridoborate afforded 3-cyclopropyl-, 3-(2-thiophen-2-yl)-, and 3-arylphthalides, respectively, in high yields. Under analogous conditions, 3-cyanobenzophenones were converted to the corresponding 3-cyanobenzhydrols.

About the authors

S. S. Mochalov

Faculty of Chemistry

Email: fed@org.chem.msu.ru
Russian Federation, Leninskie gory 1, Moscow, 119991

A. N. Fedotov

Faculty of Chemistry

Author for correspondence.
Email: fed@org.chem.msu.ru
Russian Federation, Leninskie gory 1, Moscow, 119991

E. V. Trofimova

Faculty of Chemistry

Email: fed@org.chem.msu.ru
Russian Federation, Leninskie gory 1, Moscow, 119991

N. S. Zefirov

Faculty of Chemistry

Email: fed@org.chem.msu.ru
Russian Federation, Leninskie gory 1, Moscow, 119991

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