scholarly journals Synthesis and Spectroscopic Properties of 2,3-Diphenyl-1,3-thiaza-4-one Heterocycles

2015 ◽  
Vol 7 (2) ◽  
pp. 150 ◽  
Author(s):  
Lee Silverberg ◽  
Carlos Pacheco ◽  
Anthony Lagalante ◽  
Kevin Cannon ◽  
Joshua Bachert ◽  
...  
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Spectroscopic Properties ◽  
Ring Size

Synthetic and spectroscopic data (1H NMR, 13C NMR, IR, UV/Vis) for a series of six 2,3-diphenyl-1,3-thiaza-4-one heterocycles which differ in ring size and substitution is reported. The results show that there are significant differences in spectroscopic signals common to all six compounds. Distinctions can be made among the compounds using the IR absorbance of the C4 carbonyl and the 1H NMR signal at C2, and to a lesser extent the 13C NMR signal at C4 and the UV/Vis spectrum.{The equation can be found in the PDF file}.

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 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 Dua Dimer Resveratrol dari Kulit Batang Shorea parvifolia (dipterocarpaceae)

2012 ◽  
Vol 12 (2) ◽  
pp. 163
Author(s):  
Kholifatu Rosyidah ◽  
Lia Dewi Juliawati ◽  
Yana Maolana Syah ◽  
Euis Holishotan Hakim ◽  
Sjamsul Arifin Achmad ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
1H Nmr ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Ultra Violet ◽  
Stem Bark ◽  
Infra Red ◽  
Reported Data ◽  
Nuclear Magnetic

Two resveratrol dimers, (-)-ampelopsin F dan (-)-laevifonol were isolated from aceton extract of the stem bark ofShorea parvifolia. The structures of these compounds were determined based on their spectroscopic data includingspectroscopy ultra violet (UV), infra red (IR), nuclear magnetic resonance (1H-NMR, 13C-NMR) and also were comparedto the reported data.

scholarly journals Antibacterial Activity of Germacrane Type Sesquiterpenes from Curcuma heyneana Rhizomes

2014 ◽  
Vol 14 (1) ◽  
pp. 32-36 ◽  
Author(s):  
Hartiwi Diastuti ◽  
Yana Maolana Syah ◽  
Lia Dewi Juliawaty ◽  
Marlia Singgih
Keyword(s):  
Antibacterial Activity ◽  
Liquid Chromatography ◽  
1H Nmr ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Microdilution Method ◽  
Vacuum Liquid Chromatography ◽  
Weak Antibacterial Activity

The isolation of terpenoids from C. heyneana rhizomes and their antibacterial activity have been conducted. The terpenoids were isolated by using vacuum liquid chromatography and radial chromatography. The structures of the compounds were determined based on spectroscopic data (1H-NMR, 13C-NMR (1D and 2D)). The antibacterial activity was carried out by using microdilution method and evaluated against eight bacteria. Three germacrane type sesquiterpenes have been isolated from C. heyneana rhizhomes and were identified as germacrone, dehydrocurdione, and 1(10),4(5)-diepoxygermacrone. Germacrone showed highest antibacterial activity against P. aeruginosa with MIC values of 15.6 µg/mL and MBC values 31.2 µg/mL. Dehydrocurdione showed highest antibacterial activity against B. subtilis with MIC values of 31.2 µg/mL and MBC values of 31.2 µg/mL. However, 1(10),4(5)-diepoxygermacrone showed a weak antibacterial activity.

scholarly journals ISOLASI DAN ELUSIDASI STRUKTUR SENYAWA TRITERPENOID DARI KULIT BATANG AMBACANG (Mangifera foetida L.) SERTA UJI BRINE SHRIMP LETALITY TEST (BSLT)

2015 ◽  
Vol 9 (1) ◽  
pp. 1 ◽  
Author(s):  
Adlis Santoni ◽  
Sabariah ◽  
Mai Efdi
Keyword(s):  
Ethyl Acetate ◽  
1H Nmr ◽  
13C Nmr ◽  
Brine Shrimp ◽  
Spectroscopic Data ◽  
Methanol Extract ◽  
Ethyl Acetate Extract ◽  
Toxic Effects ◽  
Toxic Compound ◽  
Isolated Compound

A brine shrimp toxic compound has been isolated from Mangifera foetida L. steam bark. Based on spectroscopic data (IR,1H- NMR, 13C-NMR 1D and 2D), the structure of this compound was identified as mangiferenes B, C30H47O2. In this study, the n-hexane, ethyl acetate, methanol extracts and isolated compound showed toxic effects (LC50 471.9543; 534.5209, 678.4421, and 22.1615 μg/mL, respectively). The toxicity degree among the three extracts and isolated compound is isolated compound > n-hexane extract > ethyl acetate extract > methanol extract.

scholarly journals STRUCTURE ELUCIDATION OF ANTIBACTERIAL COMPOUND FROM Ficus deltoidea Jack LEAVES

2011 ◽  
Vol 11 (1) ◽  
pp. 67-70 ◽  
Author(s):  
Suryati Suryati ◽  
Hazli Nurdin ◽  
Dachriyanus Dachriyanus ◽  
Md Nordin Hj Lajis
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Spectroscopic Data ◽  
Structure Elucidation ◽  
Antibacterial Activities ◽  
Ficus Deltoidea ◽  
E Coli ◽  
Minimum Inhibition Concentration ◽  
Antibacterial Compound ◽  
Inhibition Concentration

An antibacterial compound has been isolated from Ficus deltoidea Jack leaves. Based on spectroscopic data (IR, 1H-NMR, 13C NMR 1D and 2D and MS), the structure of this compound was identified as 3β-hydroksilup-20(29)-en, (lupeol), C30H50O. This compound showed antibacterial activities against E. coli, B. subtilis and S. aureus. The minimum inhibition concentration (MIC) against E. coli, B. subtilis and S. aureus are 150, 220 and 130 μg/mL respectively.

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