Zobrazeno 1 - 10
of 20
pro vyhledávání: '"James R. Matz"'
Publikováno v:
The Journal of Organic Chemistry. 58:6158-6162
Publikováno v:
ChemInform. 25
Autor:
David H. White, Rolf Gleiter, Jon Clardy, Gregory J. Haley, John E. McMurry, Gregory D. Van Duyne, James R. Matz, Wolfgang Schaefer
Publikováno v:
Journal of the American Chemical Society. 108:2932-2938
Publikováno v:
Journal of the American Chemical Society. 105:520-525
Autor:
Theodore Cohen, James R. Matz
Publikováno v:
Tetrahedron Letters. 22:2459-2462
In the presence of acid, 2-alkyl-2-vinylcyclobutanones rearrange mainly by a 1,2-acyl migration to give cyclopentenones while 2-vinylcyclobutanones lacking 2-alkyl substituents undergo a 1,3-acyl migration to produce cyclohexenones; the former rearra
Autor:
Barry M. McHenry, James R. Matz, Robert R. Hutchins, Paul R. Willey, Theodore Cohen, James P. Sherbine
Publikováno v:
Journal of the American Chemical Society. 106:3245-3252
On prepare des α-lithiosilanes par lithiation reductrice de diphenylthioacetals a l'aide du dimethylamino-1 naphtalenure de lithium, traitement de l'anion resultant par Me 3 SiCl et lithiation reductrice de l'α-(phenylthio) silane correspondant. La
Publikováno v:
Tetrahedron Letters. 23:1777-1780
A total synthesis of the naturally occurring 15-membered ring diterpene, flexibilene, was accomplished using a titanium-induced cyclization of the keto-aldehyde 3,37,11-tetramethyl- 15-oxohexadeca-4 E ,7 E ,11 E -trienal as the key step.
Autor:
James R. Matz, Theodore Cohen
Publikováno v:
Synthetic Communications. 10:311-317
Recent work from this laboratory has demonstrated that readily prepared lithium naphthalenide (2) at -70° is capable of the rapid reductive lithiation of cyclopropanone dithioketals (1) to sulfur-stabilized cyclopropyllithiums (4),1 ketene phenylthi
Publikováno v:
Tetrahedron. 43:5489-5498
Total syntheses of two macrocyclic sesquiterpene hydrocarbons, humulene ( 1 ) and flexibilene ( 2 ) are discussed in detail. Both were prepared in high overall yield by titanium-induced cyclization of the appropriate keto aldehyde precursors ( 4 and
Autor:
James R. Matz, Theodore Cohen
Publikováno v:
Tetrahedron Letters. 22:2455-2458
A facile synthesis of 2-vinylcyclobutanones consists of reductive lithiation of 1-phenylthio-1-methoxycyclopropanes) addition of enals or enones to the resulting α-lithioethers, and acid catalyzed rearrangement of the allylic alcohols thus produced.