Action of Lead Tetraacetate upon Hydroxylated Fat Acids and Related Compounds. II. Hydroxylated Ricinoleic Acid and Castor Oil1

1940 ◽  
Vol 62 (9) ◽  
pp. 2309-2311 ◽  
Author(s):  
John T. Scanlan ◽  
Daniel Swern
Keyword(s):  
Ricinoleic Acid ◽  
Lead Tetraacetate ◽  
Related Compounds

Nucleic acid related compounds. 78. Stereocontrolled syntheses of 6′(E and Z)-halovinyl analogues from uridine-derived vinylsulfones via vinyltin intermediates

1993 ◽  
Vol 71 (2) ◽  
pp. 192-198 ◽  
Author(s):  
Stanislaw F. Wnuk ◽  
Morris J. Robins
Keyword(s):  
Nucleic Acid ◽  
Trifluoroacetic Acid ◽  
Bond Cleavage ◽  
Lead Tetraacetate ◽  
Acetylenic Derivative ◽  
Vinyl Derivative ◽  
High Yields ◽  
Related Compounds

Treatment of the 6′(E)-tosylvinyl homonucleoside 1a with Bu3SnH/AIBN/toluene/Δ gave separable mixtures of 6′-vinylstannanes 2a(E/Z) in high yields. Stereospecific halodestannylations with N-iodosuccinimide, bromine, and N-bromosuccinimide proceeded smoothly to give the 6′(E or Z)-iodo(and bromo) vinyl compounds with retention of configuration. Chlorine or iodobenzene dichloride effected moderately stereoselective chlorodestannylation. Treatment of 2a with NH4F/MeOH/Δ resulted in carbon–tin bond cleavage to give the free vinyl derivative 4a. Aqueous trifluoroacetic acid effected concomitant protiodestannylation and deprotection of 2a to give 4b. Treatment of 2a(E) with lead tetraacetate/acetonitrile and deprotection afforded acetylenic derivative 3b.

C-Nucleosides and related compounds. VII. Synthesis of carbocyclic analogues of C-nucleosides

1976 ◽  
Vol 54 (6) ◽  
pp. 861-866 ◽  
Author(s):  
George Just ◽  
Bernadette Chalard-Faure
Keyword(s):  
Lead Tetraacetate ◽  
Unsaturated Ester ◽  
Related Compounds

Condensation of lactone 1 and aminoguanadine provides the amino-triazole carbocyclic analogue of C-nucleoside 2a. Lead tetraacetate oxidation of the semicarbazone derivative 4 leads to the amino-oxadiazole derivative 5. Isoxazolines 11 and 12 are obtained by 1,3-dipolar addition of mesitonitrile oxide with the α,β-unsaturated ester 13. Addition of diazomethane onto ester 13 gives the pyrazoline 16 which can be oxidized with bromine to the corresponding carboethoxy-pyrazole 17. The latter is converted to the carboxamido-pyrazole 18 by treatment with ammonia.

Zebrafish models for hallucinogenic-related compounds

2013 ◽  
Author(s):  
A. V. Kalueff ◽  
A. M. Stewart ◽  
V. Gjeloshi ◽  
D. Kondaveeti ◽  
N. Neelkantan ◽  
...  
Keyword(s):  
Related Compounds

Taxonomic distribution of thymoquinone and related compounds in selected plant species

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
J Táborský ◽  
M Kunt ◽  
P Kloucek ◽  
L Kokoska
Keyword(s):  
Plant Species ◽  
Taxonomic Distribution ◽  
Related Compounds
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