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Letters in Organic Chemistry

Author(s): Mitra Saghafi and Razieh Mohebat

DOI: 10.2174/1570178613666160624114703

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An Efficient Synthesis of 1,2-Oxazine Derivatives via the Reaction of Acetylenic Esters and 1,2-Diketone Monoxime Derivatives in the Presence of Ph3P

Page: [437 - 440] Pages: 4

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Abstract

The reactive 1:1 intermediate obtained by the addition of triphenylphosphine to dialkyl acetylenedicarboxylates was trapped by 1,2-diketone monoximes to generate functionalized 1,2-oxazine derivatives through intramolecular Wittig reaction without any catalyst in excellent yields.

Keywords: 1, 2-Diketone monoxime, Triphenylphosphine, Acetylenic esters, 1, 2-Oxazine, Intramolecular Wittig reaction.

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