000 01127nam a2200193Ia 4500
003 MX-MdCICY
005 20250625140627.0
040 _cCICY
090 _aB-10194
245 1 0 _aQuinones-VII: Halogenation and oxidative halogenation of phenols with hydrogen halides/hydrogen peroxide. Synthesis of p-chloranil and p-bromanil
490 0 _vTetrahedron, 34(10), p.1577-1579, 1978
500 _aArtículo
520 3 _aChloranil 6 and bromanil 7 are prepared in very good yields from phenol or hydroquinone with concentrated hydrochloric or hydrobromic acid/30% hydrogen peroxide and magnesium chloride as catalyst. With catechol the reaction stops at the tetrachloro- or tetrabromo-o-hydroquinone (4 or 5) stage. The iodination of phenol with potassium iodide/hydrogen-peroxide in acetic acid yields 2,4,6-tri-iodophenol (3).
700 1 2 _aLübbecke, H.
700 1 2 _aBoldt, P.
856 4 0 _uhttps://drive.google.com/file/d/1oDpsQcJJAiYJyXhpvWjZ1gm4TDGilCAU/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c44433
_d44433