Photocycloaddition of 2H-1-Benzopyran-3-carbonitriles and 2H-1-Benzothiopyran-3-carbonitriles to Alkenes and Alkenynes
β Scribed by Dirk Schwebel; Paul Margaretha
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- German
- Weight
- 147 KB
- Volume
- 83
- Category
- Article
- ISSN
- 0018-019X
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Spiro[pyrrole-3,2Π-3(2H)-benzofuranones] 7 have been refluxing DMF, the spiro compounds yield tetrasubstituted pyrroles or compounds derived from chromenopyrroles. The synthesized by [4+2] cycloaddition of 2-arylidene-3(2H)benzofuranones with the 2-benzoyl-1,2-dihydroisoquinoline-regio-and stereoche
5(4H)-ones / 2-Chloro-N-cyanomethyl-N-methylnicotinamide / Aromatic nucleophilic substitution A new synthesis of pyrido[3,2-f][1,4]thiazepine derivatives 3 starting with 2-chloronicotinic acid (1), methylaminoacetonitrile hydrochloride and carbon disulfide is described. As proved by a crystal struct