Výsledky vyhledávání - "ABDULLAH B. EL-TAHIR"

Autor: Reda A. Kabli, Abdullah B. El-Tahir, Syed Abdurrahman

Publikováno v: Journal of King Abdulaziz University-Science. 1:161-167

A practical synthesis of some dipeptides and tripeptides by the reaction of amino acids derivatives with activated enol esters derived from the reaction of N-ethylnaphth (1, 2-d) isoxazolium cation with carboxylic acids has been reported.

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https://doi.org/10.4197/sci.1-1.13

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The Naphth[1,2-d]isoxazolium Cation Reactions with Nucleophilic Species

Autor: SYED A. RAHMAN, REDA A. KABLI, ABDULLAH B. EL-TAHIR

Department of Chemistry, Faculty of Science, King Abdulaziz University, Saudi Arabia Manuscript received 10 April 1986, revised 29 January 1967, accepted 10 July 1987 The preparation and some facile reactions of 2 ethylnaphth[1,2-d]- isoxazolium cati

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Preparation of Active Esters of a Carboxylic Acid and some N-protected Amino Acids

Autor: REDA A. KABLI, SYED A. RAHMAN, ABDULLAH B. EL-TAHIR

Department of Chemistry, King Abd laziz University, Jeddah, Saudi Arabia Manuscript received 22 August 1984, accepted 11 September 1985 Carboxylates1react rapidly and smoothly with 3-unsubstituted isoxazolium salts under very mild conditions to yield

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