Cadinene family

This asymmetric isomerization was successfully applied to the formal total synthesis of 7-hydroxycalamenene and 7-hydroxycalamenal, two naturally occurring sesquiterpenes in the cadinene family (Scheme 30).52... 

Of the above four types, cadinanes are most common and are fairly widely distributed in nature (396). Several of these compounds have been found in woody parts of plants. Examples are T cadinol (294) and the hydroxy ketone 295 from the wood of Taiwania cryptomerioides (92, 255), (4-)-5-cadinene (296) from trunk wood of Cedrela toona (291), and (-)-y-cadinene (286), khusinol (297) and several related compounds from vetiver oil of North Indian origin (222, 394). Muurolenes (e.g., e-muurolene, 298) were first characterized in 1966, and were isolated from wood of Firms sylvestris (413). Cedrela toona wood (291). The other two types have not... 

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