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A steroid glycoside from the seeds ofYucca macrocarpa
- V. Grishkovets, P. Karpov, S. V. Iksanova, V. Y. Chirva
- ChemistryChemistry of Natural Compounds
- 1 November 1998
glycosides, of which the more polar one greatly predominated, and also trace amounts of still more polar glycosides. The isolation of the main steroid glycoside (SG) was achieved by defardng the…
STRUCTURAL ISOMERIZATION OF P-(P′-TRIMETHYLSILYLPHOSPHINO)-METHYLENEPHOSPHINE TO DIPHOSPHENE: A NEW APPROACH TO THE SYNTHESIS OF UNSYMMETRICAL DIPHOSPHENES
Abstract The reactions of P-chloro-bis(trimethylsilyl)methylenephosphine 1 with LiP(SiMe3)Bu t , LiP(SiMe3)Ar and LiN(SiMe3)Ar (Ar = 2,4,6-Bu t 3C6H2) have been investigated. Depending upon the…
NO2+-containing reagents in the electrophilic and oxidative addition to propellanic C-C bond
Multinuclear NMR spectroscopy and semi-empirical MNDO-PM3 quantum chemical investigations of the compounds C6H5XY (X=S, SO, SO2; Y=CF3, CH3)
A study was made of the reaction of 3-phenyl-5-(2-hydroxyphenyl)-1H-2-pyrazoline with various aldehydes and ketones, which results in the formation of derivatives of…
Rearrangement products of some 1R,4R-2-arylidene-p-menthan-3-ones in acidic media, their structures, and conformational analysis
Abstract1R,4R-2-(4-Phenylbenzylidene)-p-menthan-3-one in acidic media undergoes rearrangement with migration of the exocyclic double bond to the cyclohexane ring to form three 2-(4-phenylbenzyl)…
Vibrational spectra and structure of triazaphosphorines
Synthesis of N-Pentenyl-Substituted Monoaza-15-crowns-5 (III) and N,N′- Dipentenyl-Substituted Diaza-18-crowns-6 (VI) and Their Iodocyclization.