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Mathubala, G.
- NMR Spectral Studies of some Six-membered and Seven-membered Saturated Heterocyclic Compounds and Preparation of some Six-membered Saturated Heterocyclic Compounds and NMR Measurements
Abstract Views :184 |
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Authors
G. Mathubala
1,
N. Babitha
1
Affiliations
1 Bharath University, Selaiyur, Chennai – 600 073, IN
1 Bharath University, Selaiyur, Chennai – 600 073, IN
Source
Indian Journal of Science and Technology, Vol 7, No S3 (2014), Pagination: 19-23Abstract
(1)N-Nitroso-t[3]-methyl-r[2],c[6]-diphenyl piperidin-4-one was prepared; the procedure of Noller and Baliah was followed to prepare the compound [1]. By taking solution of the compound in a suitable solvent, NMR measurements were taken.Keywords
Ammonium Acetate, Ammonia, Anhydrous, Benzaldehyde, Crush, Drop-wise, Extract, Melting Point, Petroleum Ether, Stirring Preparation of Compounds N – Nitroso - T[3] – Methyl -r[2],c[6]-diphenylpiperidin – 4 – one [59]- NMR Spectral Studies of some Six-membered and Seven-membered Saturated Hetero Cyclic Compounds - Homopiperazin - 5 - Ones
Abstract Views :178 |
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Authors
Affiliations
1 Bharath University, Selaiyur, Chennai–600 073, IN
1 Bharath University, Selaiyur, Chennai–600 073, IN
Source
Indian Journal of Science and Technology, Vol 7, No S3 (2014), Pagination: 24-27Abstract
Some six and seven membered saturated hetero cyclic compounds were prepared. 1H NMR spectra were recorded in DMSO - d6. The chemical shifts were compared with those in CDCl3. The COSY, NOESY and 13C‒1H correlation spectra had been recorded to assign the signals unambiguously. The coupling constant of benzylic proton with one of the vicinal proton was found to be zero. The buttressing effect of alkyl groups was also studied. The chemical shift values, area of the signals, multiplicity, COSY and NOESY spectra were used to assign the signals. Further COSY and NOESY and 13C‒1H correlation spectra were also used. The solvent effect, concentration effect, and temperature effect were also studied using DMSO- d6 and CDCl3 α- effect and polar nature of the neighbouring group were also studied.Keywords
Assignment, Chemical Shift, Correlation, Isopropyl, Multiplets, NOE, Peak, Signal- NMR Spectral Studies of some Six-membered and Seven-membered Saturated Hetero Cyclic Compounds: Calculation of Torsional Angles from Vicinal Coupling Constants - Using Altona's Equation and its Comparison with DAERM Method
Abstract Views :192 |
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Authors
Affiliations
1 Department of Chemistry, Bharath University, Selaiyur, Chennai - 600 073, IN
1 Department of Chemistry, Bharath University, Selaiyur, Chennai - 600 073, IN