## Abstract The photocycloaddition of benzothiazole‐2‐thiones to electron‐rich and aryl‐substituted alkenes are described. Irradiation of __N__‐unsubstituted benzothiazole‐2‐thione (1) in the presence of alkenes 3 gave 2‐(2′‐mercaptoalkyl)benzothiazoles 4, and 2‐substituted benzothiazoles 5 and 6 (
Stereochemistry and mechanism of the [2 + 2] and [4 + 2] photocycloaddition of alkenes and dienes to pummerer's ketone
✍ Scribed by Miaden Mintas; David I. Schuster; Paul G. Williard
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- French
- Weight
- 725 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0040-4020
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📜 SIMILAR VOLUMES
## Abstract Photoexcited 3‐acetylbenzo[__b__]thiophene (1c) adds 2‐morpholinopropenenitrile (2a) in a [2 + 2] mode at the C2C3 bond regioselectively but stereounselectively with formation of cyclobuta[__b__][1]benzothiophenes 3a and 4a. In addition, the isomeric adduct 5 is formed from 2a and ex
A synthetically useful C-C bond formation involving the photochemical addition of quinoxaline-2( 1 H )thiones to alkenes is described. Irradiation of the quinoxaline-2(1H)-thiones 1 4 in the presence of the alkenes 7 gave the 2-(2'-mercaptoalkyl)quinoxalines 8 1 1 in moderate-to-good yields via ring
## Abstract For Abstract see ChemInform Abstract in Full Text.