Synthetic Communications p. 364 - 367 (2017)
Update date:2022-08-05
Topics: Characterization one-pot synthesis Workup Deprotection (if necessary) Isolation of the Product Protection of amine (if necessary) Preparation of dibenzo[c,e][1,2]oxaphosphinine-6-oxide precursor Heating and reflux
ávila-Zárraga, José Gustavo
Pérez, Ignacio
Beristain, Erick
Gavilan, Irma
Romero, Moises
Several new 6-(alkylamine)-6H-dibenz[c,e][1,2]oxaphosphinine-6-oxides were prepared through a one-pot reaction, starting with 2-phenylphenol, phosphorus trichloride, and a Zn catalyst, to form 6-chloro-6H-dibenz[c,e][1,2]oxaphosphine. The alkylamine derivatives were subsequently prepared through a nucleophilic substitution reaction involving aliphatic amines and H2O2oxidation under soft conditions. This method has the advantages that it is a one-pot synthesis, does not require an inert atmosphere, and involves in situ catalyst formation.
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