Detail of "3638-73-1"

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Oxidation of aromatic amines with chromyl chloride

Oxidation of aromatic amines with chromyl chloride. II. Studies on the intermediate solid adducts. Nallaiah, C.; Strickson, J. A. (Dep. Chem., Imo State Univ., Etiti, Nigeria). Tetrahedron, 42(14), 4089-92 (English) 1986. CODEN: TETRAB. ISSN: 0040-4020. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Oxidn. of arom. primary amines with chromyl chloride results in the formation of intermediate solid Etard adducts (C, Nallaiah and J. A. Strickson 1986). Elemental anal. of the adducts indicates that the anilines, which give 1,4-benzoquinone anils in good yields, form adducts close to a 1:1 stoichiometry with the oxidant while those forming 1,4-benzoquinones in substantial yields form 1:2 adducts. Magnetic measurements on the adducts reveal that chromium atoms are mainly present in the oxidn. state chromium(IV).In this experiment, several chemicals are used like 615-57-6 IR studies indicate that the adducts comprise 1,4-benzoquinone imines and di-imines as ligands and that giant mols. are formed by chloro and hydroxy bridges. .

Oxidation of aromatic amines with chromyl chloride

Oxidation of aromatic amines with chromyl chloride. I. Oxidation of aromatic primary amines. Nallaiah, C. 69642-02-0 and 3638-73-1 are also occured in this study.; Strickson, J. A. (Dep. Chem., Imo State Univ., Etiti, Nigeria). Tetrahedron, 42(14), 4083-7 (English) 1986. CODEN: TETRAB. ISSN: 0040-4020. DOCUMENT TYPE: Journal CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) The oxidn. of arom. primary amines with CrO2Cl2 in CCl4 or HCCl3, resulted in the formation of intermediate solid adducts (Etard adducts), which on hydrolysis give azobenzenes, 1,4-benzoquinones, anilino-1,4-benzoquinones, 1,4-benzoquinone anils, and anilino-1,4-benzoquinone anils in yields which depend on the position, nature and degree of substitution of the ring. I.e., treatment of 4-ClC6H4NH2 in CCl4 with CrO2Cl2 and then hydrolysis gave 12% 4-ClC6H4N:NC6H4Cl-4, 18% 4-chloro-p-benzoquinone, 20% anil I (R = H), and 14% I (R = 4-ClC6H4NH). .