Cedar, Cupressus

Callitris (cypress pine) Calocedrus (incense cedar) Chamaecyparis (cedar) Cupressus (cypress) Cupressocyparis Juniperus (juniper) Platycladus (platycladus) Tetraclinis (tetraclinis)... 

Softwoods Corsican pine Ponderosa pine Douglas fir European larch Radiata pine Western red cedar Cupressus macrocarpa Redwood Sitka spruce Podocarpus to tar a... 

Chinese Cedar Chamaeevparis funebris lEndl.l Franco (syn. Cupressus funebris Endl.)... 

A useful method of effecting aromatization of certain sesquiterpenes has been reported, Thus, treatment of a selection of cadinane-type sesquiterpenes in an n-decane solution with excess trifluoroacetic acid at room temperature resulted in rapid conversion into calamenene (106). A careful study using n.m.r. and c.d. techniques has permitted the assignment of the absolute stereochemistry of the naturally occurring calamenenes. The major laevorotatory isomer from the leaf oil of Alaska cedar is (107) with a lesser amount of (— )-(108). In contrast, the major calamenene from Cade and Cupressus oils is (108), together with the enantiomer of (107) as a minor component. 

A. grandis, Cedrus libani (Cedar of Lebanon), Tsuga heterophylla (Western hemlock), Pseudotsuga menziesii. Araucaria araucana (Monkey puzzle). Araucaria heterophylla (Norfolk Island pine), Podocarpus totara (Totara), Podocarpus lawrencei (Mountain plum pine), Cupressus macrocarpa (Monterey cypress), Picea sitchensis (Sitka spruce)... 

---