Studies on the synthesis of heterocyclic compounds. Part 698. An alternative protoberberine synthesis; total synthesis of (±)-xylopinine,(±)-schefferine,(±)-nandinine,(± …

T Kametani, T Sugai, Y Shoji, T Honda…

Index: Kametani; Sugai; Shoji; Honda; Satoh; Fukumoto Journal of the Chemical Society. Perkin transactions 1, 1977 , # 10 p. 1151 - 1155

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Citation Number: 20

Abstract

9, 10-Disubstituted protoberberines were synthesised by photolysis of the corresponding bromo-enamides in high yields. The products were converted into (±)-xylopinine,(±)- schefferine,(±)-nandinine,(±)-corydaline, and (±)-thalictricavine. Xylopinine was also synthesised, together with the corresponding styrene der