The Reaction of 1, 2-Epithiodecane with Secondary Amines
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چکیده
منابع مشابه
The reaction of (4R,5R)- and (4S,5S)-4,5-epoxy-2(E)-hexenoates and secondary amines.
A reaction of methyl (4R,5R)-4,5-epoxy-2(E)-hexenoate 1 with N-benzylmethylamine gave a diastereomerically pure methyl (4R,5R)-4,5-epoxy-(3S)-N-benzylmethylamino hexanoate 6 and methyl (4S,5R)-4-N-benzyl-methylamino-5-hydroxy-2(E)-hexenoate 7. The former was chemoenzymatically converted to (-)-osmundalactone 11, which is an aglycone of osmundalin. On the other hand, the directly conjugated addi...
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ABSTRACT The pseudo-Michael reaction of 1-aryl-4,5-dihydro-1H-imidazol-2-amines with ethyl 2-cyano-3-methoxyprop-2-enoate (ethyl ethoxymethylenecyanoacetate) is investigated. At -10 °C reaction takes place on the exocyclic nitrogen atom, giving exclusively ethyl esters of 2-cyano-3-[(1-phenyl-4,5-dihydro-1H-imidazol-2-yl)amino]prop-2-enoic acid. The formation of isomeric enamines which may be a...
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1 Harding, V. J., and Warneford, F. H. S., J. Biol. Chem., 1916, xxv, 319. 2 Dakin, H. D., and Dudley, H. W., J. Biol. Chem., 1913, xv, 127. 3 Neuberg, C., Biochem. Z., 1913, lvi, 500. 4 Ruhemann, S., J. Chem. Sot. 1910, xcvii, 2026. 5 In this and the preceding paper triketohydrindene hydrate has sometimes been written as the triketone for the sake of simplicity in explaining the decompositions...
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Introduction. T HE affinity between certain organic compounds and clays has been known for many years. Lloyd 1 reported the adsorptive capacity of fuller's earth for alkaloids in 1916 without theorizing extensively about the mechanism. Smith 2 reacted organic bases and their salts with bentonite and presented evidence that the reaction was one of baseexchange or metathesis, while tIauser a has ...
متن کاملTHE DEALKYLATION OF TERTIARY AMINES WITH THIOPHOSGENE AND 1-CHLOROETHYL CHLOROTHIONOFORMATE
Thiophosgene and 1-chloroethyl chlorothionoformate react readily with tertiary amines, and give the dialkylamine hydrochloride after hydrolysis of the initial product with water. Benzyl and allyl groups are cleaved in preference to methyl and other alkyl groups. The rection with the isoquinoline alkaloid narcotine occurs particularly easily.
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ژورنال
عنوان ژورنال: Journal of Japan Oil Chemists' Society
سال: 1984
ISSN: 1884-2003
DOI: 10.5650/jos1956.33.280