A three-component reaction between dialkyl acetylenedicarboxylates (DAADs) and phosphites in the presence of (2,4-dinitrophenyl) acetic acid leads to dialkyl 2-(dialkoxyphosphoryl)-3-[3-acetyl-2-(2,4-dinitrophenyl)-4-oxosuccinates in excellent yields. A similar reaction with triphenylphosphine, instead of phosphites, produces the stabilised phosphoranes in good yields.
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Indian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, India
Ramesh, K.
Murthy, S. Narayana
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Indian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, India
Murthy, S. Narayana
Karnakar, K.
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Indian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, India
Karnakar, K.
Nageswar, Y. V. D.
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Indian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem 1, Hyderabad 500607, Andhra Pradesh, India