Abstract
2,2′-Dichlorohydroazobenzene was prepared by selective hydrogenation of o-nitrochlorobenzene with hydrogen in the presence of 0.8% and 5% Pd/C catalyst. o-Chloroaniline was a minor product in the catalytic hydrogenation of o-nitrochlorobenzene. The effects of base, Pd/C catalyst, and co-catalyst were discussed on catalytic hydrogenation. 2,2′-Dichlorohydroazobenzene, as an intermediate, was rearranged to 3,3′-dichlorobenzidine after reacting with HCl. It was shown that selectivity of catalytic hydrogenation of o-nitrochlorobenzene is affected strongly by concentration of base, Pd/C catalyst, and co-catalyst. 1H and 13C NMR spectroscopy confirmed the chemical structures of 2,2′-dichlorohydrazobenzene and 3,3′-dichlorobenzidine.
| Original language | English |
|---|---|
| Pages (from-to) | 1785-1789 |
| Number of pages | 5 |
| Journal | Bulletin of the Korean Chemical Society |
| Volume | 23 |
| Issue number | 12 |
| Publication status | Published - 2002 Dec 20 |
| Externally published | Yes |
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Keywords
- 3,3′-Dichlorobenzidine
- Hydrogenation
- O-Nitrochlorobenzene
- Pd/C catalyst
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Catalytic hydrogenation of o-nitrochlorobenzene to 3,3′-dichlorobenzidine. / Shen, Kaihua; Li, Shude; Choi, Dong Hoon.
In: Bulletin of the Korean Chemical Society, Vol. 23, No. 12, 20.12.2002, p. 1785-1789.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Catalytic hydrogenation of o-nitrochlorobenzene to 3,3′-dichlorobenzidine
AU - Shen, Kaihua
AU - Li, Shude
AU - Choi, Dong Hoon
PY - 2002/12/20
Y1 - 2002/12/20
N2 - 2,2′-Dichlorohydroazobenzene was prepared by selective hydrogenation of o-nitrochlorobenzene with hydrogen in the presence of 0.8% and 5% Pd/C catalyst. o-Chloroaniline was a minor product in the catalytic hydrogenation of o-nitrochlorobenzene. The effects of base, Pd/C catalyst, and co-catalyst were discussed on catalytic hydrogenation. 2,2′-Dichlorohydroazobenzene, as an intermediate, was rearranged to 3,3′-dichlorobenzidine after reacting with HCl. It was shown that selectivity of catalytic hydrogenation of o-nitrochlorobenzene is affected strongly by concentration of base, Pd/C catalyst, and co-catalyst. 1H and 13C NMR spectroscopy confirmed the chemical structures of 2,2′-dichlorohydrazobenzene and 3,3′-dichlorobenzidine.
AB - 2,2′-Dichlorohydroazobenzene was prepared by selective hydrogenation of o-nitrochlorobenzene with hydrogen in the presence of 0.8% and 5% Pd/C catalyst. o-Chloroaniline was a minor product in the catalytic hydrogenation of o-nitrochlorobenzene. The effects of base, Pd/C catalyst, and co-catalyst were discussed on catalytic hydrogenation. 2,2′-Dichlorohydroazobenzene, as an intermediate, was rearranged to 3,3′-dichlorobenzidine after reacting with HCl. It was shown that selectivity of catalytic hydrogenation of o-nitrochlorobenzene is affected strongly by concentration of base, Pd/C catalyst, and co-catalyst. 1H and 13C NMR spectroscopy confirmed the chemical structures of 2,2′-dichlorohydrazobenzene and 3,3′-dichlorobenzidine.
KW - 3,3′-Dichlorobenzidine
KW - Hydrogenation
KW - O-Nitrochlorobenzene
KW - Pd/C catalyst
UR - http://www.scopus.com/inward/record.url?scp=0037147607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037147607&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0037147607
VL - 23
SP - 1785
EP - 1789
JO - Bulletin of the Korean Chemical Society
JF - Bulletin of the Korean Chemical Society
SN - 0253-2964
IS - 12
ER -