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Document Details
Document Type
:
Article In Journal
Document Title
:
synthesis and NOE AND 2D- NOESY spectroscopic studies of two n- propionyl derivatives of terpene-derived chiral auxilaries
والتوليف وNOE 2D-NOESY الدراسات الطيفية للمشتقات N-بروبيونيل اثنين من المساعدين تيربين المستمدة مراوان
Subject
:
synthesis and NOE AND 2D- NOESY spectroscopic studies of two n- propionyl derivatives of terpene-derived chiral auxilaries
Document Language
:
English
Abstract
:
The synthesis of two N-propionyl derivatives of terpene-derived chiral auxiliaries (one is derived from (-)-3-pinanol, and the other from isomenthol) has been achieved via the use of n-butyllithium as a base and propionyl chloride as an acylation reagent. In order to increase the yield of both N-propionyl derivatives, particularly N-propionyl derivative of chiral auxiliary derived from isomenthol, the alternative acylation reagent was employed for this purpose. Using, cheap and readily available acylation reagent, propionic anhydride gave almost the same yield of N-propionyl derivative of chiral auxiliary derived from (-)-3-pinanol, but unfortunately, this procedure did not increase the yield of the N-propionyl derivative of chiral auxiliary derived from isomenthol much, although it was slightly better. Attempts to distinguish between the prochiral methylene protons in the N-propionyl group, and all other diastereotopic protons and methyl groups in these two N-propionyl derivatives of chiral auxiliaries were carried out by using 1H NMR nOe difference spectra and 2D-NOESY spectroscopic studies.
ISSN
:
1319-6103
Journal Name
:
Journal of Saudi Chemical Society
Volume
:
4
Issue Number
:
3
Publishing Year
:
1420 AH
2000 AD
Article Type
:
Article
Added Date
:
Sunday, March 24, 2013
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
صالح طارق جمال
Jamal, Saleh Tariq
Researcher
Doctorate
Files
File Name
Type
Description
35311.pdf
pdf
Back To Researches Page