반응 #1985934

ord-a523d1c5358e4b38984524c380743b20

반응 방정식

O=C(O)c1cc(Br)c(Br)[nH]1
DBPA
O=N[O-].[Na+]
NaNO2
C
carbon black
Nc1ccc(S(=O)(=O)O)cc1
Sulfanilic acid
C
carbon black
→
N#[N+]c1ccc(S(=O)(=O)O)cc1.[OH-]
4-Sulfobenzenediazonium hydroxide

반응물

O=C(O)c1cc(Br)c(Br)[nH]1
DBPA
O=N[O-].[Na+]
NaNO2
C
carbon black
Nc1ccc(S(=O)(=O)O)cc1
Sulfanilic acid
C
carbon black

시약

없음

용매

O
water

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    온도with warming

실험 절차

This example illustrates the preparation of a carbon black product for use in the present invention. Sulfanilic acid (21 g) was dissolved in 1 L of water with warming. The solution was mixed with 100 g of a carbon black having a surface area of 230 m2 /g and a DBPA of 70 ml/100 g and allowed to cool to room temperature. An aqueous solution of 10 g NaNO2 was added slowly and the resulting dispersion was stirred for two hours. 4-Sulfobenzenediazonium hydroxide inner salt is formed in situ, which reacts with the carbon black. The product was dried overnight in an oven at 70° C. The product has attached p--C6H4SO3- groups.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US05571311uspto-grants-1996_11