Water → 4-(5,6,7,8-Tetrahydro-5,5,8,8-tetramethyl-2-naphthoylthiomethyl)benzoic acid

HRID 1756428ノート

反応式

HRID 1756428 の反応式
[SH:1][CH2:2][C:3]1[CH:11]=[CH:10][C:6]([C:7]([OH:9])=[O:8])=[CH:5][CH:4]=1.C(N(CC)CC)C.[CH3:19][C:20]1([CH3:35])[CH2:29][CH2:28][C:27]([CH3:31])([CH3:30])[C:26]2[CH:25]=[C:24]([C:32](Cl)=[O:33])[CH:23]=[CH:22][C:21]1=2.O>C1COCC1.CCCCCC.C(OCC)C>[CH3:19][C:20]1([CH3:35])[CH2:29][CH2:28][C:27]([CH3:30])([CH3:31])[C:26]2[CH:25]=[C:24]([C:32]([S:1][CH2:2][C:3]3[CH:11]=[CH:10][C:6]([C:7]([OH:9])=[O:8])=[CH:5][CH:4]=3)=[O:33])[CH:23]=[CH:22][C:21]1=2

参加物

8

反応物 4

HCID 962WaterHCID 8471TriethylamineHCID 5850394-(Mercaptomethyl)benzoic acidHCID 27954665,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalene-2-carbonyl chloride

生成物 1

HCID 214745004-(5,6,7,8-Tetrahydro-5,5,8,8-tetramethyl-2-naphthoylthiomethyl)benzoic acid収率 66%

試薬・触媒・溶媒 3

HCID 3283Diethyl Ether溶媒HCID 8028Tetrahydrofuran溶媒2 回HCID 8058Hexane溶媒

実験手順

1.68 g (10 mmol) of 4-mercaptomethylbenzoic acid, 2.8 ml (20 mmol) of triethylamine and 50 ml of THF are introduced into a round-bottomed flask. A solution of 2.5 g (10 mmol) of 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl -2-naphthoyl chloride in 50 ml of THF is added dropwise and the mixture is stirred at room temperature for four hours. The reaction medium is poured into water, the mixture is extracted with ethyl ether and the organic phase is separated after settling has taken place, then dried over magnesium sulphate and evaporated. The residue obtained is ground in 50 ml of a mixture of ethyl ether and hexane (50:50) and then filtered off. 2.5 g (66%) of the expected acid, melting point 150-151° C, are obtained.

後処理

  1. extractionthe mixture is extracted with ethyl ether
  2. customthe organic phase is separated after settling
  3. dry with materialdried over magnesium sulphate
  4. customevaporated
  5. customThe residue obtained
  6. filtrationfiltered off

出典と根拠

ORDレコード
ord-838284871af145ee892a2f4c19e1da2f
出典データセット
uspto-grants-1995_08
特許番号
US05439925

反応ノート

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