101489-38-7Relevant articles and documents
STRUCTURES OF RENGYOSIDES A, B AND C, THREE GLUCOSIDES OF FORSYTHIA SUSPENSA FRUITS
Seya, Kazuhiko,Endo, Katsuya,Hikino, Hiroshi
, p. 1495 - 1498 (1989)
Three new glucosides, rengyosides A, B and C, having as aglycones the reduced forms of phenylethanol, were isolated from Forsythia suspensa fruits.Chemical and spectroscopic studies established the structures of these natural products to be 2-(1,4-dihydroxycyclohexyl)ethyl β-D-glucopyranoside, 2-(1-hydroxy-4-ketocyclohexyl)ethyl β-D-glucopyranoside and 2-(1,4-dihydroxycyclohexyl)ethyl β-D-6-O-glucopyranoside, respectively.Saliroside, a possible biogenetic precursor of these glucosides, was also isolated. Key Word Index- Forsythia suspensa; Oleaceae; rengyoside A; rengyoside B; rengyoside C; cyclohexylethyl glucosides.
1,3-Diol synthesis via controlled, radical-mediated C-H functionalization
Chen, Ke,Richter, Jeremy M.,Baran, Phil S.
, p. 7247 - 7249 (2008/12/21)
The invention of a method for the synthesis of 1,3-diols from the corresponding alcohols is described, via controlled, radical-mediated C-H functionalization. The sequence described herein entails near quantitative conversion to the corresponding trifluoroethyl carbamate, followed by a variant of the Hofmann-Loffler-Freytag reaction, cyclization, and hydrolysis to provide the 1,3-diols. In addition to the 10 examples presented herein, the syntheses of four natural products are facilitated by this directed oxyfunctionalization. This methodology is demonstrated to be orthogonal to other known C-H oxidations. Finally, this sequence is efficient, practical, inexpensive, and scalable. Copyright
A stereocontrolled route to cyclohexylethanoid natural products
Honzumi, Masatoshi,Kamikubo, Takashi,Ogasawara, Kunio
, p. 1001 - 1003 (2007/10/03)
Rengyol and seven related cyclohexylethanoid natural products have been synthesized in a stereocontrolled manner from a common starting material. In the present study the absolute configuration of the three chiral products has been determined and the first synthesis of a cyclohexylethanoid natural product bearing an oxetane ring has been accomplished.