scholarly journals NMR data for the hydroxyl groups detected by NOESY spectra in sesquiterpene lactones

Data in Brief ◽  
2019 ◽  
Vol 25 ◽  
pp. 104246 ◽  
Author(s):  
Jaromir Budzianowski ◽  
Joanna Nawrot ◽  
Gerard Nowak
Keyword(s):  
Sesquiterpene Lactones ◽  
Hydroxyl Groups ◽  
Nmr Data ◽  
Noesy Spectra

Two New Limonoids With A 3-O-β-Tigloyl Group From The Seeds Of The Chinese Mangrove Xylocarpus Granatum

2007 ◽  
Vol 62 (6) ◽  
pp. 859-862 ◽  
Author(s):  
Jun Wu ◽  
Minyi Li ◽  
Si Zhang ◽  
Qiang Xiao ◽  
Qingxin Li
Keyword(s):  
Spectroscopic Data ◽  
2D Nmr ◽  
Nmr Data ◽  
Xylocarpus Granatum ◽  
Nmr Techniques ◽  
Noesy Spectra ◽  
C Nmr

A new mexicanolide and a new phragmalin, named 30α-hydroxyl xylogranatin A and xylogranatin E2, respectively, have been isolated from the seeds of a Chinese mangrove Xylocarpus granatum. Their structures were identified on the basis of spectroscopic data. Each of them has a 3-O-β -tigloyl group. The first complete assignments of 1H and 13C NMR data for these limonoids were achieved by means of 2D NMR techniques, including 1H-1H COSY, HSQC, HMBC and NOESY spectra

Structure of the Hydroxyl Groups and Adsorbed D2O Sites in the DX Zeolite: DFT and Experimental NMR Data

2015 ◽  
Vol 119 (33) ◽  
pp. 19548-19557 ◽  
Author(s):  
Piotr Błoński ◽  
Artur Birczyński ◽  
Zdzisław T. Lalowicz ◽  
Jerzy Datka ◽  
Zbigniew Łodziana
Keyword(s):  
Hydroxyl Groups ◽  
Nmr Data

Identification of acyl groups occurring in sesquiterpene lactones: Proton and carbon-13 NMR study

1987 ◽  
Vol 52 (2) ◽  
pp. 453-475 ◽  
Author(s):  
Miloš Buděšínský ◽  
David Šaman
Keyword(s):  
Chemical Shifts ◽  
Sesquiterpene Lactones ◽  
Nmr Chemical Shifts ◽  
H Nmr ◽  
Nmr Parameters ◽  
Nmr Data ◽  
Nmr Study ◽  
C Nmr

Characteristic 1H NMR parameters of 88 acyl groups, hitherto found as ester substituents in natural sesquiterpenic lactones, were determined from the measured spectra as well as literature data. Characteristic 13C NMR chemical shifts for 45 acyl groups were obtained in the same way; for the remaining acyls with hitherto unknown 13C NMR data the values were calculated on the basis of semiempirical relationships.

Xylogranatin E, a New Phragmalin with a Rare Oxygen Bridge between C1 and C29, from the Fruit of a Chinese Mangrove Xylocarpus granatum

2007 ◽  
Vol 62 (4) ◽  
pp. 569-572 ◽  
Author(s):  
Jun Wu ◽  
Haixin Ding ◽  
Minyi Li ◽  
Si Zhang
Keyword(s):  
Spectroscopic Analysis ◽  
2D Nmr ◽  
Oxygen Bridge ◽  
Nmr Data ◽  
Xylocarpus Granatum ◽  
Complete Assignment ◽  
Nmr Techniques ◽  
Noesy Spectra ◽  
C Nmr

Xylogranatin E, the second phragmalin with a rare oxygen bridge between C1 and C29 found in nature, was isolated from the fruit of a Chinese mangrove, Xylocarpus granatum. Its structure was determined by spectroscopic analysis. Complete assignment of 1H and 13C NMR data of xylogranatin E was achieved by 2D NMR techniques, including 1H-1H COSY, HSQC, HMBC and NOESY spectra.

scholarly journals Essential Oil and other Constituents from Magnolia Ovata Fruit

2012 ◽  
Vol 7 (10) ◽  
pp. 1934578X1200701
Author(s):  
Letícia F. L. Barros ◽  
Carlos Augusto Ehrenfried ◽  
Dilamara Riva ◽  
Andersson Barison ◽  
Renato de Mello-Silva ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Sesquiterpene Lactones ◽  
Hexadecanoic Acid ◽  
Plant Populations ◽  
Aliphatic Compounds ◽  
Nmr Data ◽  
Dried Fruit ◽  
First Time ◽  
Unripe Fruits

The volatile and non-volatile constituents of the unripe fruits of Magnolia ovata(A. St.-Hil.) Spreng. (Magnoliaceae) were studied. The essential oils were obtained by hydrodistillation of the fruit of two plant populations (A and B) and analyzed by GC/FID and GC/MS. The oil of sample A was rich in sesquiterpenes, mainly spathulenol (19.3%), while the oil of sample B showed a predominance of aliphatic compounds, mainly hexadecanoic acid (52.0%). Extracts of the dried fruit contained fourteen known compounds including nine lignoids (magnovatin A, magnovatin B, acuminatin, licarin A, oleiferin A, oleiferin C, kadsurenin M, 4- O-demethylkadsurenim M and 7- epi-virolin), two sesquiterpene lactones (parthenolide and michelenolide) and three alkaloids (lysicamine, lanuginosine and O-methylmoschatoline). Michelenolide, 7- epi-virolin and lisycamine are reported for the first time in the species, while the remaining compounds have already been reported in the leaves and/or trunk bark of Magnolia ovata. Acetylation of oleiferin A yielded a new compound, acetyl oleiferin A, whose NMR data and that of michelenolide are furnished.

scholarly journals Особенности спектров ядерного магнитного резонанса полигидроксилированного фуллерена C-=SUB=-60-=/SUB=-(OH)-=SUB=-n-=/SUB=-

2018 ◽  
Vol 60 (7) ◽  
pp. 1451
Author(s):  
А.C. Мазур ◽  
А.Е. Карпунин ◽  
О.В. Проскурина ◽  
В.И. Герасимов ◽  
И.В. Плешаков ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
1H Nmr ◽  
Benzene Solution ◽  
Hydroxyl Groups ◽  
Peak Splitting ◽  
Nmr Data ◽  
Nuclear Magnetic

AbstractPolyhydroxylated fullerene C_60(OH)_ n (with an estimated number of hydroxyl groups n = 38–44) synthesized from pure fullerene by mixing a benzene solution of C_60 with a NaOH aqueous solution in the presence of a catalyst was studied with ^1H and ^13C solid-state nuclear magnetic resonance. Possible features of the structure of a molecule shell were revealed from ^1H NMR data. The ^13C spectrum showed a peak splitting with an increase in temperature, which is probably due to fullerenol isomers.

X-ray and high-resolution 1H and 13C NMR of smooth muscle relaxant sesquiterpene lactones

2008 ◽  
Vol 86 (12) ◽  
pp. 1077-1084 ◽  
Author(s):  
Marie-Rose Van Calsteren ◽  
Christopher K Jankowski ◽  
Ricardo Reyes-Chilpa ◽  
Manuel Jiménez-Estrada ◽  
Maria G Campos ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
High Resolution ◽  
Muscle Relaxant ◽  
Sesquiterpene Lactones ◽  
Test Results ◽  
1H And 13C Nmr ◽  
X Ray ◽  
Nmr Data ◽  
High Resolution Nmr ◽  
Smooth Muscle Relaxant

The structure and stereochemistry of four sesquiterpene lactones, budlein A (1), zaluzanin A (2), and glaucolides D (3a) and E (3b), isolated from Mexican Asteraceae species, for which only partial NMR data could be found in the literature, were determined. A combination of 1D and 2D high-resolution NMR experiments, such as DEPT, COSY, NOESY, ROESY, HMQC, HSQC, and HMBC, were used to completely assign the 1H and 13C spectra. The crystal structures of zaluzanin A (2) and glaucolide E (3b) were also determined. Glaucolides D and E have been previously reported to relax KCl-induced contraction in rat uterine smooth muscle; therefore, the effects of zaluzanin A and budlein A were examined in the same model. It was found that both compounds can relax contraction induced by KCl, but only zaluzanin A induced relaxation when contraction was induced with oxytocin. The preliminary biological test results according to these profiles are reported in this paper.Key words: NMR data, X-ray data, sesquiterpene lactones, Mexican Asteraceae, smooth muscle relaxant.

Sesquiterpene lactones of Urospermum dalechampii SCHMIDT

1986 ◽  
Vol 51 (8) ◽  
pp. 1698-1709 ◽  
Author(s):  
Urszula Rychłewska ◽  
Derek J. Hodgson ◽  
Halina Grabarczyk ◽  
Bohdan Drożdż ◽  
Włodzimierz M. Daniewski ◽  
...  
Keyword(s):  
Sesquiterpene Lactones ◽  
Spectral Characteristics ◽  
X Ray ◽  
Nmr Data ◽  
C Nmr

In the species Urospermum dalechampii SCHMIDT urospermal A (I) and 11βH,13-dihydrourospermal A (II) were detected. The latter compound was also detected in U. picroides SCHMIDT. The spectral characteristics of both lactones were completed by 13C NMR data. The structure of 11βH,13-dihydrourospermal A (II) was also confirmed by X-ray analysis.

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