Visible-Light-Mediated Cyclopropanation Reactions of 3-Diazooxindoles with Arenes was written by Zhao, Shuai;Chen, Xiang-Xiang;Gao, Nan;Qian, Mingcheng;Chen, Xin. And the article was included in Journal of Organic Chemistry in 2021.Reference of 112656-95-8 This article mentions the following:
The cyclopropanation reaction of 3-diazooxindoles with arenes was first accomplished using visible-light irradiation A series of spiro[norcaradiene-7,3′-indolin]-2′-ones, e.g., I, were synthesized for the first time in high yields and with excellent diastereoselectivities. The synthetic usefulness of this catalyst-free photochem. methodol. is illustrated by the further controllable rearrangement and epoxidation reactions. In the experiment, the researchers used many compounds, for example, 7-Nitroindoline-2,3-dione (cas: 112656-95-8Reference of 112656-95-8).
7-Nitroindoline-2,3-dione (cas: 112656-95-8) belongs to indole derivatives. Indole produced by Proteus, Pseudomonas, Escherichia and other species was shown to be a growth promoting factor in Arabidopsis thaliana.Indole was synthesized in moderate yield via an o-naphthoquinone catalyzed tandem cross-coupling of substituted aniline and benzylamine under aerobic oxidation conditions.Reference of 112656-95-8
Referemce:
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Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles