A facile synthesis of stable phosphorus ylides derived from 3,6-dibromocarbazole and kinetic investigation of the reactions by UV spectrophotometry technique

2008 ◽  
Vol 19 (7) ◽  
pp. 723-732 ◽  
Author(s):  
Sayyed Mostafa Habibi-Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Mohammad zakarianezhad ◽  
Mahmoud Nassiri ◽  
Mohammad Amin Kazemian ◽  
...  
Keyword(s):  
Uv Spectrophotometry ◽  
Kinetic Investigation ◽  
Phosphorus Ylides ◽  
Facile Synthesis ◽  
Stable Phosphorus Ylides

scholarly journals Synthesis of stable phosphorus ylides from 3, 5-dimethylpyrazole and kinetic investigation of the reactions by UV spectrophotometry

ARKIVOC ◽  
2007 ◽  
Vol 2006 (16) ◽  
pp. 168-184
Author(s):  
Sayyed Mostafa Habibi Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Mahmoud Nassiri ◽  
Mohammad Zakarianezhad ◽  
Mahbobeh Fattahi
Keyword(s):  
Uv Spectrophotometry ◽  
Kinetic Investigation ◽  
Phosphorus Ylides ◽  
Stable Phosphorus Ylides

Synthesis of Stable Phosphorus Ylides from 6-Chloro-2-Benzoxazolinone and Kinetic Investigation of the Reactions by Uv Spectrophotometry

2009 ◽  
Vol 34 (1) ◽  
pp. 77-96 ◽  
Author(s):  
Mohammad Amin Kazemian ◽  
Pouya Karimi ◽  
Sayyed Mostafa Habibi-Khorassani ◽  
Ali Ebrahimi ◽  
Malek Taher Maghsoodlou ◽  
...  
Keyword(s):  
Uv Spectrophotometry ◽  
Kinetic Investigation ◽  
Phosphorus Ylides ◽  
Stable Phosphorus Ylides

A Facile Synthesis of Stable Phosphorus Ylides Derived from Harmin, Harman, and Carbazole

2006 ◽  
Vol 181 (3) ◽  
pp. 567-572 ◽  
Author(s):  
Sayyed Mostafa Habibi Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Nourollah Hazeri ◽  
Mahmoud Nassiri ◽  
Ghasem Marandi ◽  
...  
Keyword(s):  
Phosphorus Ylides ◽  
Facile Synthesis ◽  
Stable Phosphorus Ylides

A Facile Synthesis of Stable Phosphorus Ylides Containing Chlorine and Sulfur Derived from 6-Chloro-2-benzoxazolethiol and 2-Chloro-phenothiazine

2009 ◽  
Vol 184 (7) ◽  
pp. 1713-1721 ◽  
Author(s):  
Malek Taher Maghsoodlou ◽  
Nourollah Hazeri ◽  
Sayyed Mostafa Habibi Khorasani ◽  
Hadi Mahmoudi Moghaddam ◽  
Mahmoud Nassiri ◽  
...  
Keyword(s):  
Phosphorus Ylides ◽  
Facile Synthesis ◽  
Stable Phosphorus Ylides

A Facile Synthesis of Stable Phosphorus Ylides Derived from Harmin, Harman, and Carbazole.

ChemInform ◽  
2006 ◽  
Vol 37 (25) ◽  
Author(s):  
Sayyed Mostafa Habibi Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Nourollah Hazeri ◽  
Mahmoud Nassiri ◽  
Ghasem Marandi ◽  
...  
Keyword(s):  
Phosphorus Ylides ◽  
Facile Synthesis ◽  
Stable Phosphorus Ylides

Theoretical Study, An Efficient Synthesis Route to, and Kinetic Investigation of, Stable Phosphorus Ylides Derived from Benzamide

2009 ◽  
Vol 34 (3) ◽  
pp. 261-288 ◽  
Author(s):  
Sayyed Mostafa Habibi-Khorassani ◽  
Ali Ebrahimi ◽  
Malek Taher Maghsoodlou ◽  
Hamideh Saravani ◽  
Mohammad Zakarianezhad ◽  
...  
Keyword(s):  
Theoretical Study ◽  
Theoretical Calculations ◽  
Condensation Reaction ◽  
Kinetic Investigation ◽  
Phosphorus Ylides ◽  
Acetylenic Esters ◽  
One Pot ◽  
Rate Determining Step ◽  
Mechanistic Investigation ◽  
Stable Phosphorus Ylides

The synthesis, theoretical study and a kinetics and mechanistic investigation are described as a one-pot condensation reaction between benzamide and acetylenic esters in the presence of triphenyphosphine to generate a novel stable phosphorus ylides. For the first time, theoretical calculations have been employed to assign the most stable isomers ( Z or E) of phosphorus ylides 4a-c by AIM and NBO theory, in which Z-4(a,b) are the more stable forms, whereas Z-4c appears as a single isomer. In these cases, the 1H, 13C and 31P NMR spectra of these ylides are consistent with the results obtained from theoretical calculations. Kinetic investigation of the new ylides was undertaken by UV. Useful information was obtained from studies of the effect of solvent, structure of reactants (different alkyl groups within the acetylenic esters), and also the concentration of reactants on the rate of reactions. The proposed mechanism was consistent with the results obtained; from the steady-state approximation, the first step ( k2) of the reaction was recognized as the rate-determining step on the basis of the experimental data.

Chemoselective Synthesis of Stable Phosphorus Ylides from 6-Azauracil and Mechanistic Investigation of the Reaction by UV Spectrophotometry

2009 ◽  
Vol 184 (11) ◽  
pp. 2959-2979 ◽  
Author(s):  
Mostafa Habibi-Khorassani ◽  
Malek Taher Maghsoodlou ◽  
Ali Ebrahimi ◽  
Mohammad Amin Kazemian ◽  
Mohammad Zakarianejad
Keyword(s):  
Uv Spectrophotometry ◽  
Phosphorus Ylides ◽  
Chemoselective Synthesis ◽  
Mechanistic Investigation ◽  
Stable Phosphorus Ylides
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