Fully fluorinated alkoxides. Part II. Ethoxides, propoxides, and butoxides

1967 ◽  
Vol 45 (4) ◽  
pp. 389-395 ◽  
Author(s):  
M. E. Redwood ◽  
C. J. Willis
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spectral Data ◽  
Alkali Metals ◽  
Metal Fluoride ◽  
Factors Affecting ◽  
Infrared Spectral ◽  
The Stability ◽  
Fluorinated Alkoxides ◽  
Nuclear Magnetic

Ionic, fully fluorinated, ethoxides, n-propoxides, isopropoxides, and n-butoxides of the heavier alkali metals may be made by the reaction of the appropriate acyl fluoride, or of hexafluoroacetone, with the metal fluoride. Factors affecting the stability and possible synthetic use of such compounds are discussed, together with n.m.r. (nuclear magnetic resonance) and infrared spectral data.

Synthesis of plantamajoside, a bioactive dihydroxyphenylethyl glycoside from Plantago major L.

Holzforschung ◽  
2006 ◽  
Vol 60 (5) ◽  
pp. 492-497 ◽  
Author(s):  
Toshinari Kawada ◽  
Yuko Yoneda ◽  
Ryuji Asano ◽  
Ippei Kan-no ◽  
Walther Schmid
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Total Synthesis ◽  
Caffeic Acid ◽  
Spectral Data ◽  
Natural Compound ◽  
Plantago Major ◽  
Target Compound ◽  
Sugar Esters ◽  
Nuclear Magnetic

Abstract The first total synthesis of plantamajoside (1), 2-(3′,4′-dihydroxylphenyl)ethyl-4-O-caffeoyl-3-O-(β-D-glucopyranosyl)-β-D-glucopyranoside, which is one of the dihydroxyphenylethyl glycosides (caffeic acid sugar esters), is described. Key intermediate 2, 2-[3′,4′-bis(O-benzyl)phenyl]ethyl 2,6-di-O-acetyl-4-O-[3′,4′-bis(O-benzyl)caffeoyl]-β-D-glucopyranoside was glycosylated with trichloroacetoimidoyl 2,3,4,6-tetra-O-acetyl-α-D-glycopyranoside (3) to afford plantamajoside derivative 4a, 2-[3′,4′-bis(O-benzyl)phenyl]ethyl 2,6-di-O-acetyl-4-O-[3′,4′-bis(O-benzyl)caffeoyl]-3-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-β-D-glucopyranoside, in 39% yield. Plantamajoside derivative 4a was successfully converted into the target compound, plantamajoside (1), through a series of de-protective procedures. 1H- and 13C nuclear magnetic resonance (NMR) spectral data of the synthesized plantamajoside (1) were identical to those of the natural compound.

FULLY FLUORINATED ALKOXIDES: PART I. TRIFLUOROMETHOXIDES OF ALKALI METALS

1965 ◽  
Vol 43 (7) ◽  
pp. 1893-1898 ◽  
Author(s):  
M. E. Redwood ◽  
C. J. Willis
Keyword(s):  
Relative Stability ◽  
Alkali Metals ◽  
Reversible Reaction ◽  
Metal Fluoride ◽  
Factors Affecting ◽  
Ionic Solids ◽  
Fluorinated Alkoxides ◽  
Carbonyl Fluoride

The preparation is described of the trifluoromethoxides of the heavier alkali metals, i.e. MOCF3 where M = K, Rb, or Cs. These are stable, crystalline, ionic solids made by the reversible reaction of carbonyl fluoride with the appropriate metal fluoride. No trifluoromethoxides could be prepared from lithium, sodium, barium, or thallium(I) fluorides. Factors affecting the relative stability of such compounds are discussed.

Eine ungewöhnliche intramolekulare Photoreaktion eines Hexachlorhexahydromethanonaphthalins / An Unusual Intramolecular Photoreaction of a Hexachlorohexahydromethanonaphthaline

1978 ◽  
Vol 33 (12) ◽  
pp. 1563-1564
Author(s):  
H. Parlar
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Infrared Spectroscopy ◽  
Magnetic Resonance ◽  
Spectral Data ◽  
Column Chromatography ◽  
Nuclear Magnetic

Photoreactions of 2-exo-bromo-5,6,7,8,9,9- hexachloro-1,2,4 a, 5,8,8 a-hexahydro-5,8-methanonaphthaline (1) were studied in the presence of acetophenone. With the help of column chromatography an unusual isomerisation product (3) was isolated, whose structure was established by spectral data obtained by mass spectrometry, infrared spectroscopy, and 1H nuclear magnetic resonance measurements.

Carbonyl-bridged and related compounds. Structural assignments by nuclear magnetic resonance spectroscopy

1967 ◽  
Vol 45 (11) ◽  
pp. 1201-1207 ◽  
Author(s):  
C. F. H. Allen
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Nuclear Magnetic Resonance Spectroscopy ◽  
Spectral Data ◽  
Resonance Spectroscopy ◽  
Nuclear Magnetic Resonance Spectra ◽  
Related Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The spectral data, predominantly nuclear magnetic resonance spectra, of a number of carbonyl-bridged and related compounds have been examined. In most instances they confirm the structures arrived at by classical procedures, but in some instances revisions have been made.

A carbon-13 nuclear magnetic resonance spectral data base and search system

1978 ◽  
Vol 11 (11) ◽  
pp. 535-540 ◽  
Author(s):  
D. L. Dalrymple ◽  
C. L. Wilkins ◽  
G. W. A. Milne ◽  
S. R. Heller
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Data Base ◽  
Spectral Data ◽  
Search System ◽  
Nuclear Magnetic

scholarly journals N-[2-(1H-Indol-3-yl)ethyl]-2-(4-isobutylphenyl)propanamide

Molbank ◽  
10.3390/m1031 ◽  
2018 ◽  
Vol 2018 (4) ◽  
pp. M1031
Author(s):  
Stanimir Manolov ◽  
Iliyan Ivanov ◽  
Yulian Voynikov
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spectral Data ◽  
1H Nmr ◽  
13C Nmr ◽  
Mass Spectral Data ◽  
Mass Spectral ◽  
Nuclear Magnetic

The compound in the title was prepared by reaction between tryptamine and ibuprofen using N,N′-dicyclohexylcarbodiimide as a “dehydrating” reagent. The structure of the newly synthesized compound was determined by nuclear magnetic resonance (NMR) (1H-NMR and 13C-NMR), UV, IR, and mass spectral data.

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