138841-11-9Relevant articles and documents
Tetrachloro-o-benzoquinone in Organic Synthesis: A Novel Synthetic Route to Pyrazolobenzoxazines and 5,7-Disubstituted-4-hydroxycoumarins
Nawwar, Galal A. M.
, p. 3139 - 3155 (2007/10/02)
A novel synthesis of dihydropyrazolobenzoxazines and their corresponding pyrazolobenzoxazines utilizing tetrachloro-o-benzoquinone - as a dehydrogenating agent - is described.Also, this simple method of dehydrogenation succeeds in