Natural product chemistry, 139. Synthesis of the natural coumarins (E)??suberenol, cyclobisuberodiene and two other related new coumarins

J Reisch, HMT Herath, NS Kumar

Index: Reisch, Johannes; Herath, H. M. T. Bandara; Kumar, N. Savitri Liebigs Annalen der Chemie, 1990 , # 9 p. 931 - 933

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Citation Number: 7

Abstract

Abstract The total synthesis of (E)-Suberenol (1) was carried out under the conditions of palladium-catalysed Heck condensation. Two other new coumarins,(E)-7-methoxy-6-(3- methyl-1, 3-butadienyl) coumarin [(E)-suberodiene](3) and (E)-7-methoxy-6-(3-methyl-1- butenyl) coumarin [(E)-suberenene](4) and cyclobisuberodiene (2) were synthesised from (E)-suberenol.