PPh3/DDQ as a neutral system for the facile preparation of diethyl α-bromo, α-iodo and α-azidophosphonates from diethyl α-hydroxyphosphonates |
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| Authors: | Habib Firouzabadi Nasser Iranpoor Sara Sobhani |
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| Institution: | Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran |
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| Abstract: | The mixture of triphenylphosphine (PPh3) and 2,3-dichloro-5,6-dicyanobenzquinone (DDQ) as a neutral system has been used for the preparation of various types of diethyl α-bromo, α-iodo and α-azidophosphonates from their corresponding diethyl α-hydroxyphosphonates in the presence of n-Bu4NBr, n-Bu4NI and NaN3 in good to high yields. |
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