Methane → 4-Sulfobenzenediazonium hydroxide

HRID 581176

반응식

HRID 581176 반응식
C.[S:2]([OH:12])(=[O:11])([C:4]1[CH:9]=[CH:8][C:7]([NH2:10])=[CH:6][CH:5]=1)=[O:3].C1C(Br)=C(Br)[NH:15]C=1C(O)=O.N([O-])=O.[Na+]>O>[OH-:3].[S:2]([C:4]1[CH:5]=[CH:6][C:7]([N+:10]#[N:15])=[CH:8][CH:9]=1)([OH:12])(=[O:11])=[O:3]

참가 물질

6

반응물 4

HCID 297Methane2회HCID 8479Sulfanilic acid2회HCID 1618304,5-Dibromo-2-Pyrrolic AcidHCID 23668193Sodium Nitrite

생성물 1

HCID 227152964-Sulfobenzenediazonium hydroxide

시약·촉매·용매 1

HCID 962Water용매2회

실험 절차

This example illustrates another method for the preparation of a carbon black product of the present invention. In this example, the acid for the diazotization reaction comes from the amine forming the diazonium salt, sulfanilic acid. As a result, no additional acid was required. A carbon black (10 g) with a CTAB surface area of 350 m2/g and a DBPA of 120 ml/100 g was added to a boiling solution of 2.12 g sulfanilic acid in 90 g of water. A solution of 1.04 g of NaNO2 in 10 g water was added cautiously. 4-Sulfobenzene diazonium hydroxide inner salt was formed in situ, which reacted with the carbon black. After stirring for about 20 min, the resulting dispersion was dried in an oven at 120° C. A sample of the product that had been subjected to Soxhlet extraction overnight with ethanol contained 3.16% sulfur, compared to 0.5% sulfur for the untreated carbon black. Therefore, the carbon black product had 0.83 mmol/g of attached p-C6H4SO3 -- groups.

출처 및 근거

ORD 기록
ord-190ce8f44c554d1d9ee5aa987c6f8a06
출처 데이터셋
uspto-grants-1999_07
특허 번호
US05919855

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