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By by Basil T. Fedoroff ...

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69 8 Discussion and Summary 71 9 References .......................... 73 Marine isocyano (-NC) terpenoids are often accompanied by isothiocyanates (R-NCS) and formamides (R-NHCHO). Recent work has uncovered the less common cyanates (R-NCO), thiocyanates (R-SCN), amines (R-NH2) and carbonimidic dichlorides (R-N=CCI2). A majority of sesquiterpenes bear one of the nitrogenous functional groups of the related -NC/-NCS/-NHCHO triad. More complex substitution exists in diterpenoid skeletons.

5 . . . . . . . . . . . . . . . . . 7 . . . . . . . . . . . . . . . . . 7 3 Isolation Methodology 37 38 4 Marine lsocyano/lsothiocyano/Formamido Compounds . . . . . 39 44 44 45 47 49 50 51 52 54 55 58 59 62 ............................ 1 S p e c t r o s c o p i c E v a l u a t i o n . . . . . . . . . . . . 1 S e s q u i t e r p e n o i d s . . . . . . . . . . . . . . . 1 A x a n e . .

Studies to-date reveal that these natural products are rather restricted to a few genera in the class Demospongiae. These sponges are sessile, filter-feeding organisms possessing siliceous skeletal elements [14-1. None have so far been isolated from other classes in Porifera, the Calcarea, Hexactinellida, or Sclerospongiae. 1 Porifera Of the relatively few sponges that contain isonitrile-related metabolites, no more than twenty have been fully identified and some of these are known only at the genus level.

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Encyclopedia of explosives and related items Vol. 3 [Chlorides to Detonating relays] by by Basil T. Fedoroff ...


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