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1-Propanephosphonic Acid Cyclic Anhydride (T3P) as an Efficient Promoter for the Lossen Rearrangement: Application to the Synthesis of Urea and Carbamate Derivatives

Basavalingappa Vasantha, Hosahalli P. Hemantha, Vommina V. Sureshbabu*
Peptide Research Laboratory, Department of Studies in Chemistry, Central College Campus, Dr. B. R. Ambedkar Veedhi, Bangalore University, Bangalore 560 001, India
e-Mail: hariccb@hotmail.com; e-Mail: sureshbabuvommina@rediffmail.com; e-Mail: hariccb@gmail.com;