Dynamic 1H NMR study around the heteroaryl–carbon and carbon–carbon single bonds and also around carbon–carbon double bond in a particular phosphorous ylide involving a 2-methyl indole

2009 ◽  
Vol 50 (26) ◽  
pp. 3621-3624 ◽  
Author(s):  
Sayyed Mostafa Habibi-Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Ali Ebrahimi ◽  
Fatemeh Vasheghani Farahani ◽  
Elahe Mosaddeg ◽  
...  
Keyword(s):  
Double Bond ◽  
1H Nmr ◽  
Carbon Double Bond ◽  
Nmr Study ◽  
Dynamic 1H Nmr ◽  
Single Bonds

Synthesis and Study of Dynamic 1H NMR of Carbon–Carbon Double Bond Rotation Energy Barrier in Stable Phenothiazine Phosphorus Ylides

2007 ◽  
Vol 182 (3) ◽  
pp. 647-655 ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Sayyed Mostafa Habibi Khorassani ◽  
Uranous Niroumand ◽  
Faramarz Rostami Charati ◽  
Maryam Khosrosharodi
Keyword(s):  
Double Bond ◽  
1H Nmr ◽  
Energy Barrier ◽  
Phosphorus Ylides ◽  
Bond Rotation ◽  
Carbon Double Bond ◽  
Dynamic 1H Nmr ◽  
Rotation Energy

Dynamic 1H-NMR study of unusually high barrier to rotation about the partial C N double bond in N,N-dimethyl carbamoyl 5-aryloxytetrazoles

2017 ◽  
Vol 1133 ◽  
pp. 244-252 ◽  
Author(s):  
Fahimeh Movahedifar ◽  
Ali Reza Modarresi-Alam ◽  
Erich Kleinpeter ◽  
Uwe Schilde
Keyword(s):  
Double Bond ◽  
1H Nmr ◽  
Nmr Study ◽  
Dynamic 1H Nmr

scholarly journals Dynamic 1H NMR Study of the Hindered Internal Rotation in a Particular Biological Phosphorus Ylide Involving 6-Azauracil

2015 ◽  
Vol 8 (2) ◽  
pp. 565-572
Author(s):  
SAYYED HABIBI-KHORASSANI ◽  
MEHDI SHAHRAKI ◽  
MALEK MAGHSOODLOU ◽  
EIDEH MOFARRAH ◽  
ELHAM MOFARRAH ◽  
...  
Keyword(s):  
Internal Rotation ◽  
1H Nmr ◽  
Phosphorus Ylide ◽  
Nmr Study ◽  
Dynamic 1H Nmr ◽  
Biological Phosphorus

Stereochemistry of some substituted 2-furyl- and 2-thienyl ethylene derivatives. 1H NMR study

1982 ◽  
Vol 47 (12) ◽  
pp. 3412-3417 ◽  
Author(s):  
Miloslava Dandárová ◽  
Jaroslav Kováč ◽  
Daniel Végh ◽  
Vladimír Žvak
Keyword(s):  
Double Bond ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Side Chain ◽  
H Nmr ◽  
Nmr Study ◽  
Thiophene Derivatives

Stereochemistry of (E)- and (Z)-1-(5-nitro-2-furyl)-2-Y-ethylenes and 1-(5-nitro-2-thienyl)-2-Y-ethylenes (where Y = CH3O, 4-CH3C6H4O, N3 and Br) and of E and Z isomers of methyl 2-methyl-3-(2-furyl)propenoate and methyl 2-methyl-3-(2-thienyl)propenoate was studied by 1H NMR spectroscopy. With 1-(5-nitro-2-furyl)-2-Y-ethylenes, it was found that the preferred conformation of the furyl substituent relative to the side chain double bond is s-trans in the E isomers and s-cis in the Z isomers. The s-cis conformation is prevailing in both isomers of methyl 2-methyl-3-(2-furyl)propenoate. The E and Z isomers of all studied thiophene derivatives exist in the s-trans conformation.

Dynamic NMR study of rotation around carbon-carbon double bond in esters of ?-nitro-?-arylaminoacrylic acids

1977 ◽  
Vol 26 (12) ◽  
pp. 2610-2612
Author(s):  
V. I. Bakhmutov ◽  
V. A. Burmistrov ◽  
K. K. Babievskii ◽  
V. M. Belikov ◽  
�. I. Fedin
Keyword(s):  
Double Bond ◽  
Dynamic Nmr ◽  
Carbon Double Bond ◽  
Nmr Study
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