3,3,6,6-Tetrachloro-2,2-dihydroxycyclohexanone as a synthetic equivalent of unavailable 3-chloro-6-hydroxy-1,2-benzoquinone: first synthesis of 4-chloro-1-hydroxyphenazines
摘要:
3,3,6,6-Tetrachloro-2,2-dihydroxycyclohexanone has been found to be an excellent synthetic equivalent of unavailable 3-chloro-6-hydroxycyclohexa-1,2-benzoquinone. Reactions with 1,2-phenylenediamines provide hitherto unattainable 4-chloro-1-hydroxyphenazines in fair to high yields. (C) 2007 Elsevier Ltd. All rights reserved.