77325-94-1Relevant articles and documents
Unsaturated Crown Ethers. 3. Syntheses of Stilbeno Crown Ethers
Inoue, Yoshihisa,Harino, Hiroya,Nakazato, Toshiyo,Koseki, Noriaki,Hakushi, Tadao
, p. 5151 - 5156 (2007/10/02)
A series of 6-, 9-, and 15-membered monostilbeno crown ethers (3) and 18-, 24-, and 30-membered distilbeno crown ethers (4), some of which are new compounds, were synthesized in the base-induced reactions of benzoin (1) with oligoethylene glycol ditosylates (2a-d) in homogeneous and heterogeneous solutions.The template effect is shown to be effective in controlling product yields and 4/3 ratios.
UNSATURATED CROWN ETHERS: STILBENO-CROWN ETHERS
Inoue, Yoshihisa,Ouchi, Mikio,Nakazato, Toshiyo,Matsuda, Takashi,Hakushi, Tadao
, p. 781 - 784 (2007/10/02)
Stilbenocrown ethers 3a,c and 4a,b were synthesized in a cyclization reaction of benzoin with oligoethylene glycol ditosylates (2a-c) under a phase-transfer condition.Extractions of aqueous alkali picrates (Na+-Cs+) were examined with the distilbenocrown ethers 4a,b, the partially-hydrogenated tetraphenylcrown ethers 6a,b, and the fully-hydrogenated tetracyclohexylcrown ethers 7a,b.
