Absolute configuration of the (+)-calamenenes: crystal structure of 7-hydroxycalamenene

Kevin D. Croft, Emilio L. Ghisalberti, Charles H. Hocart, Phillip R. Jefferies, Colin L. Raston, Allan H. White

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


The sesquiterpenes 7-hydroxycalamenene and (+)-calamenene isolated from Eremophila drummondii have been interrelated. The crystal structure and absolute configuration of the p-bromobenzoate of 7-hydroxycalamenene, C22H25BrO2, has been determined; crystals are orthorhombic, space group P212121. unit cell dimensions a = 9.471(5). b = 11.469(5), c = 18.253(7) Å, for Z = 4. These results show that both sesquiterpenes have the (1R,4R) -configurations and resolve the present confusion on this point.

Original languageEnglish
Pages (from-to)1267-1270
Number of pages4
JournalJournal of the Chemical Society, Perkin Transactions 1
Issue number10
Publication statusPublished - 1 Jan 1978
Externally publishedYes


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