29851-39-6Relevant articles and documents
A New Reaction of Acid Chlorides. Intramolecular ortho-Chlorination
Byers, Maureen,Forrester, Alexander R.,John, I. Lennox,Thomson, Ronald H.
, p. 1092 - 1095 (2007/10/02)
2-(2-Arylazophenoxy)-2-methylpropanoic acids (1) react with thionyl chloride to form 4-(2-chloranilino)benzoxazinones (3) in high yield.The reaction proceeds through the acid chloride which undergoes cyclisation with intramolecular electrophilic transfer