Detail of "4702-78-7"

CAS Number:
4702-78-7
Name:
1,2-Ethanedione,1,2-diphenyl-, 1,2-dihydrazone
Molecular Structure:
Formula:
C₁₄H₁₄N₄
Molecular Weight:
238.2878
Synonyms:
Benzil,dihydrazone (6CI,7CI,8CI);Ethanedione, diphenyl-, dihydrazone (9CI);1,2-Diphenylethane-1,2-dione dihydrazone;Benzil bishydrazone;Diphenylglyoxaldihydrazone;NSC 60029;
Density:
1.16 g/cm³
Boiling Point:
430.6 °C at 760 mmHg
Flash Point:
214.2 °C

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Efficient copper-catalyzed oxidation of dihydrazones of a-diketones to disubstituted acetylenes: Efficient copper-catalyzed oxidation of dihydrazones of a-diketones to disubstituted acetylenes. Tsuji, Jiro; Kezuka, Hiroaki; Toshida, Yomishi; Takayanagi, Hiroshi; Yamamoto, Keiji (Dep. Chem. Eng., Tokyo Inst. Technol., Tokyo 152, Japan). Tetrahedron, 39(20), 3279-82 (English) 1983. CODEN: TETRAB. ISSN: 0040-4020. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) H2NN:CRCR:NNH2 (I; R = Ph, pentyl) were oxidized by Cu2Cl2-O2-pyridine in CH2Cl2 at room temp. to give 88-97% RCYCR. 4702-78-7 and 58671-11-7 which are cas registry numbers of chemicals are mentioned. Although I were oxidized with 4 equiv Cu(II) salt without O, efficient oxidn. of I also proceeded smoothly in the presence of a catalytic amt. of Cu2Cl2 under O. .