13C NMR spectroscopic data for glutinol and derivatives

1994 ◽  
Vol 32 (6) ◽  
pp. 378-379 ◽  
Author(s):  
Roberto Sigfrido Gallegos Olea ◽  
Luce Maria Brandão Torres ◽  
Luiz Carlos Roque ◽  
Nidia Franca Roque
Keyword(s):  
13C Nmr ◽  
Spectroscopic Data

scholarly journals Structure Elucidation of an Pentacyclic Triterpenoid and Phenolic from Steam Bark of Vitex Pubescens Vahl

2019 ◽  
Vol 1 (1) ◽  
pp. 68-74
Author(s):  
Lenny Anwar
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Betulinic Acid ◽  
Spectroscopic Data ◽  
Structure Elucidation ◽  
Stem Bark ◽  
Hydroxybenzoic Acid ◽  
Pentacyclic Triterpenoid ◽  
Reported Data ◽  
First Time

Pentacyclic triterpenoid, betulinic acid (1) and phenolic, p-hydroxybenzoic acid (2), had been isolated for the first time from the stem bark of Vitex pubescens Vahl. The structure of compounds 1 and 2 was determined based on the interpretation of spectroscopic data including UV, IR, NMR (1H-NMR, 13C-NMR, HMQC, HMBC, COSY) and MS, as well as by comparison with those reported data.

scholarly journals Functionalized 1,3-Thiazolidin-4-Ones from 2-Oxo-Acenaphthoquinylidene- and [2.2]Paracyclophanylidene-Thiosemicarbazones

Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3069 ◽  
Author(s):  
Ashraf A. Aly ◽  
Nasr K. Mohamed ◽  
Alaa A. Hassan ◽  
Kamal M. El-Shaieb ◽  
Maysa M. Makhlouf ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Complex Structure ◽  
2D Nmr ◽  
Efficient Tool ◽  
X Ray ◽  
Dialkyl Acetylenedicarboxylates ◽  
Allyl Derivative

The reactions of dialkyl acetylenedicarboxylates with various 2-oxo-acenaphthoquinylidene- and 4-acetyl[2.2]paracyclophanylidene-thiosemicarbazones were investigated. Using simple experimental procedures, 1,3-Thiazolidin-4-ones derived from acenaphthequinone or [2.2]paracyclophane were obtained as major products in good yields. In the case of allyl derivative of acenaphthoquinylidene-thiosemicarbazones, a complex structure of tetramethyl 5-(2-(((Z,E)-N-allyl-N′-(2-oxoacenaphthylen-1(2H)-ylidene)carbamohydrazonoyl)thio)-1,2,3-tris-(methoxycarbonyl)-cyclopropyl)-4-methoxy-7-oxabicyclo[2.2.1]hepta-2,5-diene-1,2,3,6-tetracarboxylate was formed. Single crystal X-ray analysis was used as an efficient tool to confirm the structure of the synthesized compounds as well as different spectroscopic data (1H-NMR, 13C-NMR, 2D-NMR, mass spectrometry and elemental analysis). The mechanism of the obtained products was discussed.

scholarly journals THE PORIFERASTA COMPOUND-5,22E,25-TRIEN-3-Oβ FROM Clerodendrum paniculatum LEAF AS INDUCER AGENT OF SYSTEMIC RESISTANCE ON RED CHILLI PLANT Capsicum annuum L FROM CUCUMBER MOSAIC VIRUS (CMV

2010 ◽  
Vol 9 (3) ◽  
pp. 487-490
Author(s):  
Weny Musa ◽  
Hersanti Hersanti ◽  
Achmad Zainuddin ◽  
Roekmi-ati Tjokronegoro
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Capsicum Annuum ◽  
1H Nmr ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
2D Nmr ◽  
Systemic Resistance ◽  
Inhibition Activity ◽  
Chilli Plant

The poriferasta-5.22E.25-trien-3β-ol compound of leaves of this plant Clerodendrum paniculatum has activity as an inducer agent of plant systemic resistance of red plant toward Cucumber Mosaic Viruses (CMV), the inhibition activity compound shows 82% inhibition activity at 300 ppm. The structure of these compound were determined on the basis of spectroscopic data including UV, IR, 1H-NMR, 13C-NMR and 2D-NMR   Keywords: Poriferasta-5.22E.25-trien-3β-ol, Clerodendrum paniculatum, induction of systemic resistance, CMV

scholarly journals DIPRENYLATED XANTHONE FROM THE STEM BARK OF KANDIS GAJAH (Garcinia griffithii)

2010 ◽  
Vol 8 (1) ◽  
pp. 97-100
Author(s):  
Elfita Elfita ◽  
Supriyatna Supriyatna ◽  
Husen H. Bahti ◽  
Dachriyanus Dachriyanus
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Stem Bark ◽  
First Time

A diprenylated xanthone, 1,5-dihydroxy-3-methoxy-4,7-diprenylxanthone (1) had been isolated the first time from the dichloromethane extract of the stem bark of Garcinia griffithii, together with 1,7-dihydroxyxanthone (2) and polyisoprenylated benzophenone, guttiferone I (3). The structure of these compounds were determined on the basis of spectroscopic data including UV, IR,  1H NMR, 13C NMR, HMQC, HMBC and COSY.   Keywords: diprenylated xanthone, 1,5-dihydroxy-3-methoxy-4,7-diprenylxanthone, Garcinia griffithii

scholarly journals SYNTHESIS AND BIOLOGICAL ACTIVITIES EVALUATION OF SOME NEW SPIRO 1,2,4-TRIAZOLE DERIVATIVES HAVING SULFONAMIDE MOIETY

2015 ◽  
Vol 23 (23) ◽  
pp. 49-59
Author(s):  
Hany M. Dalloul ◽  
Khaled El-nwairy ◽  
Ali Z. Shorafa ◽  
Ahmed Abu Samaha
Keyword(s):  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Sulfonic Acid ◽  
Spectroscopic Data ◽  
Biological Activities ◽  
Cyclic Ketones ◽  
Triazole Derivatives ◽  
Toluene Sulfonic Acid

A series of new spiro 1,2,4-triazoles V-IXa-j were synthesized by the reaction of appropriate amidrazones IV with cyclic ketones in the presence of p-toluene sulfonic acid as a catalyst. The structures of the synthesized compounds have been confirmed by the elemental analysis and spectroscopic data (IR, 1H NMR, 13C NMR and MS). The microbial features of the synthesized compounds were studied using well-established methods from the literature.

scholarly journals Sixteen New Prenylated Flavonoids from the Fruit of Sinopodophyllum hexandrum

Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3196 ◽  
Author(s):  
Yanjun Sun ◽  
Haojie Chen ◽  
Junmin Wang ◽  
Meiling Gao ◽  
Chen Zhao ◽  
...  
Keyword(s):  
Hepg2 Cell ◽  
Mtt Assay ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Cytotoxic Activities ◽  
Prenylated Flavonoids ◽  
Ic50 Values ◽  
Sinopodophyllum Hexandrum ◽  
Hepg2 Cell Lines ◽  
Mcf 7

Sixteen new prenylated flavonoids, sinoflavonoids P–Z (1–11) and sinoflavonoids NA–NE (12–16), were isolated from the fruit of Sinopodophyllum hexandrum, along with eight known analogues (17–24). Their structures were elucidated on the basis of extensive spectroscopic data (HR-ESI-MS, 1H-NMR, 13C-NMR, HSQC, HMBC). The cytotoxic activities of compounds 1–18, 20, and 22 were evaluated by MTT assay. Compound 6 showed the most potent cytotoxicity in MCF-7, and HepG2 cell lines, with IC50 values of 6.25 and 3.83 μM, respectively.

Prediction of Natural Product Classes Using Machine Learning and 13C NMR Spectroscopic Data

2020 ◽  
Vol 60 (7) ◽  
pp. 3376-3386 ◽  
Author(s):  
Saúl H. Martínez-Treviño ◽  
Víctor Uc-Cetina ◽  
María A. Fernández-Herrera ◽  
Gabriel Merino
Keyword(s):  
Machine Learning ◽  
Natural Product ◽  
13C Nmr ◽  
Spectroscopic Data

ChemInform Abstract: Determination of the Structure of 1-Vinylbenzazoles by 1H- and 13C-NMR Spectroscopic Data.

ChemInform ◽  
1988 ◽  
Vol 19 (43) ◽  
Author(s):  
A. V. AFONIN ◽  
L. A. ES'KOVA ◽  
V. K. VORONOV ◽  
E. S. DOMNINA ◽  
L. V. BAIKALOVA ◽  
...  
Keyword(s):  
13C Nmr ◽  
Spectroscopic Data ◽  
1H And 13C Nmr
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