White, J. D„ Mann, M. E.. Isoindoles

The tenth volume of this serial publication comprises six chapters, four of which deal with the general chemistry of a specific group of heterocyclic compounds pyridopyrimidines (W. J. Irwin and D. G. VVibberley), benzofuroxans (A. J. Boulton and P. B. Ghosh), isoindoles (J. D. White and M. E. Mann), and pyrylium salts (A. T. Balaban, W. Schroth, and G. Fischer). The remaining chapters are concerned with indole Grignard reagents (R. A. Heacock and S. Kasparek) and with cyclic hydroxamic acids (J. B. Bapat, D. St. C. Black, and R. C. Brown).The international flavor of the publication is preserved our contributors come from six countries in three continents. 

Isobenzothiophenes. l,2-Dibenzoyl-4,5-dimethylcyclohexa-l,4-diene refluxed with phosphorus pentasulfide in toluene -> 5,6-dimethyl-l,3-diphenylisobenzothiophene. Y 90%. Also the isobenzofuran analog and isoindoles s. M. E. Mann and J. D. White, Chem. Commun. 1969, 420. 

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