Squaric acid → HCID 178426355, 화합물

HRID 485731

반응식

HRID 485731 반응식
[C:1]1(O)[C:5](=[O:6])[C:3](=O)[C:2]=1[OH:7].[NH2:9][CH:10]1[CH2:15][C:14]([CH3:17])([CH3:16])[NH:13][C:12]([CH3:19])([CH3:18])[CH2:11]1>C(O)(C)C>[CH3:16][C:14]1([CH3:17])[CH2:15][CH:10]([NH:9][C+:1]2[C:2]([O-:7])=[C:3]([NH:9][CH:10]3[CH2:11][C:12]([CH3:19])([CH3:18])[NH:13][C:14]([CH3:17])([CH3:16])[CH2:15]3)[C+:5]2[O-:6])[CH2:11][C:12]([CH3:19])([CH3:18])[NH:13]1

참가 물질

4

반응물 2

HCID 17913Squaric acidHCID 375244-Amino-2,2,6,6-tetramethylpiperidine

생성물 1

HCID 178426355HCID 178426355, 화합물수율 90.4%

시약·촉매·용매 1

HCID 3776Isopropanol용매

실험 절차

In an autoclave, 114.0 g of quadratic acid (1.0 mole), 390.8 g of 4-amino-2,2,6,6-tetramethylpiperidine (2.5 moles), and 800 cc of isopropanol were heated for five hours to 140° C. and then for 15 hours to 210° C. After cooling, the solid was suctioned off and dried. The thusobtained crude product was eluted three times with boiling methanol, washed with cold methanol, and then exhaustively dried, yielding as the remainder 353.1 g of white crystals (yield: 90.4%, mp>400° C., decomposition).

후처리

  1. temperatureAfter cooling
  2. customdried
  3. washwas eluted three times with boiling methanol
  4. washwashed with cold methanol
  5. customexhaustively dried

출처 및 근거

ORD 기록
ord-faed4478198f48718faf6c2e10510a16
출처 데이터셋
uspto-grants-1985_08
특허 번호
US04537924

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