Methanol → Urea Urethane

HRID 1158186

반응식

HRID 1158186 반응식
CC1C=CC(N=C=O)=CC=1[N:11]=[C:12]=[O:13].C[OH:15].[CH:16]1C([NH2:22])=CC=C(S(C2C=CC(N)=CC=2)(=O)=O)[CH:17]=1>C(C(C)=O)C>[NH2:22][C:12]([NH2:11])=[O:13].[NH2:11][C:12]([O:13][CH2:16][CH3:17])=[O:15]

참가 물질

5

반응물 3

HCID 887MethanolHCID 2955DapsoneHCID 11443Toluene 2,4-Diisocyanate

생성물 1

HCID 21585015Urea Urethane수율 269.1%

시약·촉매·용매 1

HCID 6569Methyl Ethyl Ketone용매

반응 조건

온도
60 °C

실험 절차

To 17 g of 2,4-toluene diisocyanate was added 40 g of methyl ethyl ketone as a solvent, followed by adding dropwise thereto 3.8 g of methanol, and the reaction was carried out with stirring at 60° C. for 5 hours. Then, 9.9 g of 4,4′-diaminodiphenyl sulfone was added thereto, and the reaction was carried out with stirring at 60° C. for 4 hours. After completion of the reaction, the methyl ethyl ketone as solvent was removed by the use of an evaporator, and the residue was dried overnight in a vacuum to obtain 16 g of a urea-urethane composition as white crystals. The melting point of the white crystals was 169° C. In IR analysis on the crystals, characteristic peaks due to a urea-urethane compound appeared at 1660 cm−1 and 1740 cm−1. The content of the urea-urethane main constituent in the urea-urethane composition was 52% as measured by liquid chromatography.

후처리

  1. additionby adding dropwise
  2. stirringwith stirring at 60° C. for 4 hours
  3. customAfter completion of the reaction
  4. customthe methyl ethyl ketone as solvent was removed by the use of an evaporator
  5. customthe residue was dried overnight in a vacuum

출처 및 근거

ORD 기록
ord-ff7ab37fd7344939a0c46a5e70468142
출처 데이터셋
uspto-grants-2010_10
특허 번호
US07807738B2

연결된 노트

불러오는 중…