Formaldehyde → HCID 21521125, 화합물

HRID 918471

반응식

HRID 918471 반응식
[C:1]1([C:7]2[O:11][C:10](=[S:12])[NH:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:13]([C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([C:23]([CH3:26])([CH3:25])[CH3:24])[C:18]=1[OH:27])([CH3:16])([CH3:15])[CH3:14].C=O.[CH2:30]1N2CN3CN(C2)CN1C3>CN(C)C=O.O>[C:23]([C:19]1[CH:20]=[C:21]([CH:22]=[C:17]([C:13]([CH3:16])([CH3:15])[CH3:14])[C:18]=1[OH:27])[CH2:30][N:9]1[N:8]=[C:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[O:11][C:10]1=[S:12])([CH3:26])([CH3:25])[CH3:24]

참가 물질

7

반응물 4

HCID 712FormaldehydeHCID 4101HexamethylenetetramineHCID 314052,6-Di-tert-butylphenolHCID 7352545-Phenyl-1,3,4-oxadiazole-2-thiol

생성물 1

HCID 21521125HCID 21521125, 화합물

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

35.6 g of 5-phenyl-1,3,4-oxadiazole-2-thione (0.2 mol), 41.2 g of 2,6-di-tert.-butylphenol (0.2 mol), 6,6 g of paraformaldehyde (0.22mol) and 0.5 g of hexamethylenetetramine in 130 ml of dimethylformamide and 13 ml of water are heated to 110°C for 7 hours, whilst stirring. After cooling, the reaction mixture is stirred into 500 ml of ice water and the product which precipitates is isolated. For purification, the reaction product is repeatedly digested with methanol, filtered off and dried. 3-(3,5-di-t-Butyl-4-hydroxybenzyl)-5-phenyl-1,3,4-oxadiazole-2-thione (stabiliser N0. 6), thus obtained, has a melting point of 166°C.

후처리

  1. temperatureAfter cooling
  2. customthe product which precipitates
  3. customis isolated
  4. customFor purification
  5. filtrationfiltered off
  6. customdried

출처 및 근거

ORD 기록
ord-4b0b91e300f549ff8c1ba3cbbe9cca65
출처 데이터셋
uspto-grants-1976_07
특허 번호
US03971803

연결된 노트

불러오는 중…