Zobrazeno 1 - 10
of 439
pro vyhledávání: '"F. Sondheimer"'
Publikováno v:
Tetrahedron Letters. 15:599-602
Autor:
F. Sondheimer, K. Yamamoto
Publikováno v:
Tetrahedron. 30:4229-4232
Publikováno v:
Steroids. 3:1-12
Reaction of 2-formyl-5α-androst-2-en-17β-ol (III) with ethynylmagnesium bromide yielded the ethynyl-ethylenic diol (IV). This diol was rearranged by means of sulfuric acid to the conjugated ethynyl-ethylenic diol (VIa), containing the 3-hydroxyl gr
Autor:
I B, WILSON, F, SONDHEIMER
Publikováno v:
Archives of Biochemistry and Biophysics. 69:468-474
Autor:
F. Sondheimer, Y. Mazur
Publikováno v:
Experientia. 16:181-184
Es wird gezeigt, dass die IR-Spektren gewisser 1,4-Diketone und 1,4-Ketoester abnorm hohe Carbonylfrequenzen aufweisen, was auf das Vorhandensein eines intramolekularen Feldeffekts zwischen den beiden Carbonylgruppen in diesen Verbindungen hindeutet.
Publikováno v:
The Journal of Organic Chemistry. 20:542-545
Publikováno v:
Tetrahedron Letters. 11:4769-4772
Autor:
F. Sondheimer, Y. Amiel
Publikováno v:
Journal of the American Chemical Society. 79:5817-5820
Autor:
F. Sondheimer, J.N. Marx
Publikováno v:
Tetrahedron. 22:1-7
(±)-Loliolide ((±)-digiprolactone) (I) has been synthesized from isophorone (IV) by two routes. The first utilized the oxidative lactonization of the mono-unsaturated acetoxy-ester XIb with selenium dioxide as a key step, while the second involved