Preparation and properties of 5-nitro-, 7-nitro-, and 5,7-dinitrooxindole

Abstract

The preparation and the mass spectra of the title compounds are discussed.

Synthesis of α‐oxo‐sulfines in the indole series

“…A number of substituted oxindoles, for example, [20–25] 6‐chloro‐oxindole, 6‐bromo‐oxindole, and 5‐nitro‐oxindole likewise could be converted to sulfines as well as adducts with 2,3‐dimethyl‐butadiene. All these derivatives of 13a substituted in the benzene ring could readily be converted to ring‐substituted derivatives of isoindigo.…”