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Amphilectosins A and B have been identified from the organic extract of Pseudopterogorgia elisabethae collected in the Florida Keys, along with seco-pseudopterosins and pseudopterosins. The structures of the amphilectosins, "C-12-C-13 dehydro seco-pseudopterosins", suggested that these metabolites p...

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Laser flash photolysis of 9-hydroxy-9-fluorenecarboxylic acid in hexafluoro-2-propanol (HFIP) generates a transient with lambda(max) at 495 nm that reacts with nucleophiles such as methanol and bromide and is insensitive to oxygen. In the presence of 0.15 M trifluoroacetic acid, a different transien...

Herein we report on the intercalation of polyaniline, poly(2-ethylaniline), and poly(2-propylaniline) into graphite oxide. This was achieved by taking advantage of the exfoliation/reconstruction properties of the layered host. The resulting intercalates were characterized by powder X-ray diffraction...

Laser Flash Photolysis of arylchlorodiazirines in isooctane/CH2Cl2 in the presence of substituted vinylpyridines yields substituted vinylpyridinium ylide (lambda = 540 nm). As the ylide decays a concomitant growth causes an absorption at 330 nm, attributed to the formation of substituted indolizine....

A fortified enzyme preparation of the gorgonian Pseudopterogorgia americana or Pseudopterogorgia elisabethae has been developed which efficiently transforms a variety of precursor molecules, e.g., sterols, to their corresponding metabolites, e.g., 9(11)-secosteroid in high yield. NAD, NADP, and glut...

Abstract: The complexes [CpTi(SCHCH2CH2S)]2 (Cp = Cp (3), MeCp (4)) are readily prepared from reaction of CpTi(SCH2CH2CH2S)Cl (Cp = Cp (1), MeCp (2)) with MeLi, AlMe3, or t-BuLi. Both compounds are centrosymmetric dimers in the solid state containing strained thiatitanacyclopropane rings. PMe3 cleav...

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Poly[bis-(methoxyethoxyethoxy)phosphazene] (MEEP) has been intercalated into MoS2 by using the exfoliation/re-stacking properties of LiMoS2. (C) 2002 Elsevier Science B.V. All rights reserved.

A small library of semisynthetic analogues of fuscol and eunicol have been prepared and evaluated for in vivo topical anti-inflammatory activity using the mouse-ear edema assay. The first glycosylation of fuscol and eunicol has been achieved using a modified Koenigs-Knorr glycosylation to synthesize...

In this paper we report on the synthesis and characterization of a few alkyl substituted polyanilines into VOPO4. This was achieved by treating the monomers with the highly oxidizing host VOPO4 center dot 2H(2)O. The monomers polymerize and simultaneously insert in between the layers of the host sys...

Abstract: The reaction of (Me3SiC5H4)2ZrCl2 with excess LiAlH4 affords the product 5. The structural characterization of 5 reveals two types of aggregation of the (Me3SiC5H4)2ZrH2 and AlH3 fragments formulated as [(Me3SiC5H4)2ZrH(-H)2]3Al and [(Me3SiC5H4)2ZrH(-H)2]2AlH. In this Zr3Al aggregate, thre...

In this paper we report on the insertion of polypyrrole into layered graphite oxide. This was achieved by using the exfoliating and re-stacking properties of the host. The resulting intercalated product was characterized by powder X-ray diffraction, FT-IR spectroscopy, thermogravimetric analysis and...

The pseudopterosins are a family of diterpene pentosides isolated from the marine octocoral, Pseudopterogorgia elisabethae. These compounds possess non-steroidal anti-inflammatory and analgesic properties which have been shown to be greater than the industry standard, indomethacin. In our investigat...

Abstract: A solid precipitate is formed immediately upon the mixing of aqueous salt solutions of the fluorescence probe 1-anilino-8-naphthalenesulfonate (1,8-ANS) and the cage compound cucurbituril. The resulting solid compound is highly fluorescent, with a maximum emission at ca. 478 nm. Single cry...

Investigations are reported that identify the biosynthetic source and origins of the pseudopterosins, pharmacologically important diterpene glycosides, in the gorgonian coral Pseudopterogorgia elisabethae. We report here the isolation of physiologically significant levels of endogenous pseudopterosi...