Hydrochloric Acid → 5-n-Butylthio-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole

HRID 1058107ノート

反応式

HRID 1058107 の反応式
Cl[C:2]1[CH:34]=[CH:33][C:5]2=[N:6][N:7]([C:9]3[CH:14]=[C:13]([C:15]([CH2:18][C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:17])[CH3:16])[CH:12]=[C:11]([C:23]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)([CH3:25])[CH3:24])[C:10]=3[OH:32])[N:8]=[C:4]2[CH:3]=1.[CH2:35]([SH:39])[CH2:36][CH2:37][CH3:38].[OH-].[K+].CN1CCCC1=O.Cl>C(OCC)(=O)C>[CH2:35]([S:39][C:2]1[CH:34]=[CH:33][C:5]2=[N:6][N:7]([C:9]3[CH:14]=[C:13]([C:15]([CH2:18][C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:17])[CH3:16])[CH:12]=[C:11]([C:23]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)([CH3:25])[CH3:24])[C:10]=3[OH:32])[N:8]=[C:4]2[CH:3]=1)[CH2:36][CH2:37][CH3:38]

参加物

7

反応物 5

HCID 313Hydrochloric AcidHCID 8012ButanethiolHCID 13387N-methyl-2-pyrrolidoneHCID 14797Potassium HydroxideHCID 218850095-chloro-2-(2-hydroxy-3-alpha-cumyl-5-tertoctylphenyl)-2H-benzotriazole

生成物 1

HCID 186728385-n-Butylthio-2-(2-hydroxy-3-alpha-cumyl-5-tert-octylphenyl)-2H-benzotriazole収率 83%

試薬・触媒・溶媒 1

HCID 8857Ethyl Acetate溶媒

反応条件

温度
170 °C

実験手順

5-Chloro-2-(2-hydroxy-3-α-cumyl-5-tert-octylphenyl)-2H-benzotriazole (38.1 g, 0.08 mol), n-butyl mercaptan (9 g, 0.10 mol), potassium hydroxide (10.1 g, 0.18 mol) and N-methylpyrrolidone (99 g, 1.0 mol) are charged to a reactor and heated to 170° C. The reaction mass is held at 170° C. with vigorous stirring for five hours. The reaction is judged as complete using thin layer chromatogrphy. The temperature is reduced to 5° C. and 100 mL of aqueous 2N hydrochloric acid are then added to the reactor. The liquid is decantedand the solids are dissolved in ethyl acetate. The organic layer is washed with aqueous 2N hydrochloric acid followed by water. The ethyl acetate is stripped off and the product is crystallized from ethanol and toluene. The tide compound is obtained as a yellow crystalline product in 83% yield. The structure is verified by 1Hnmr.

後処理

  1. customis held at 170° C.
  2. customis reduced to 5° C.
  3. washThe organic layer is washed with aqueous 2N hydrochloric acid
  4. customthe product is crystallized from ethanol and toluene
  5. customThe tide compound is obtained as a yellow crystalline product in 83% yield

出典と根拠

ORDレコード
ord-5de9134c0bd64197856554af04fe4333
出典データセット
uspto-grants-2003_02
特許番号
US06515051B2

反応ノート

読み込み中…