Dynamic 1H NMR Study of Aryl-Nitrogen Single Bond and Carbon-Carbon Double Bond Rotational Energy Barriers in Two Highly Functionalized Pyranopyrimidines

2001 ◽  
Vol 132 (6) ◽  
pp. 683-687 ◽  
Author(s):  
Issa Yavari ◽  
Norollah Hazeri ◽  
Malek T. Maghsoodlou ◽  
Nader Zabarjad-Shiraz
Keyword(s):  
Double Bond ◽  
1H Nmr ◽  
Rotational Energy ◽  
Single Bond ◽  
Energy Barriers ◽  
Carbon Double Bond ◽  
Nmr Study ◽  
Dynamic 1H Nmr

scholarly journals Synthesis, dynamic 1H NMR and theoretical study of aryl-nitrogen single bond rotational energy barriers in highly functionalized 4H-chromenes

ARKIVOC ◽  
2009 ◽  
Vol 2008 (17) ◽  
pp. 12-19
Author(s):  
Roya Kabiri ◽  
Nourallah Hazeri ◽  
Sayyed Mostafa Habibi Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Ali Ebrahimi ◽  
...  
Keyword(s):  
1H Nmr ◽  
Theoretical Study ◽  
Rotational Energy ◽  
Single Bond ◽  
Energy Barriers ◽  
Dynamic 1H Nmr

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

Dynamic 1 H NMR study around the carbon-carbon single bond and partial carbon-carbon double bond in the two particular phosphorus ylides and in an enaminoester

2011 ◽  
Vol 49 (5) ◽  
pp. 213-220 ◽  
Author(s):  
Sayyed Mostafa Habibi-Khorassani ◽  
Ali Ebrahimi ◽  
Malek Taher Maghsoodlou ◽  
Sara Same-Salari ◽  
Shahin Nasiri ◽  
...  
Keyword(s):  
Double Bond ◽  
Single Bond ◽  
Phosphorus Ylides ◽  
H Nmr ◽  
Carbon Double Bond ◽  
Nmr Study

Photoreactions of Nitroso Compounds in Solution. XIX Stereochemistry of Nitrosamine Photoaddition to Olefin

1971 ◽  
Vol 49 (18) ◽  
pp. 3069-3071 ◽  
Author(s):  
Y. L. Chow ◽  
S. C. Chen ◽  
D. W. L. Chang
Keyword(s):  
Free Radical ◽  
Double Bond ◽  
Intermediate Stage ◽  
Nitroso Compounds ◽  
Radical Mechanism ◽  
Single Bond ◽  
Carbon Double Bond ◽  
Free Radical Mechanism ◽  
Cis And Trans

The stereochemical course of the photoaddition of nitrosamines to a carbon–carbon double bond was shown to follow a free radical mechanism initiated by aminium radicals. The photoaddition to cyclohexene was highly stereoselective in which the addendum approached in anti-diaxial mode. Similar photoadditions to cis- and trans-2-butenes were less stereoselective, giving mixtures of the erythro- and threo-adducts, owing to the rotation of the carbon-carbon single bond in the intermediate stage.

Rotational Energy Barrier of the Polarized Carbon-Carbon Double Bond in Quinophthalone

2002 ◽  
Vol 133 (8) ◽  
pp. 1109-1113 ◽  
Author(s):  
Issa Yavari ◽  
Mehdi Adib ◽  
Hamid R. Bijanzadeh ◽  
Majid M. M. Sadegi ◽  
Hossein Logmani-Khouzani ◽  
...  
Keyword(s):  
Double Bond ◽  
Energy Barrier ◽  
Rotational Energy ◽  
Carbon Double Bond
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