Stearic Acid → Potassium Stearate

HRID 1593718

反応式

HRID 1593718 の反応式
[C:1]([O:20]CCCC)(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].C(O)(=O)CCCCCCCCCCCCCCCCC.CS(OCCCC)(=O)=O.[OH-].[K+:55]>CS(O)(=O)=O.C(O)CCC>[C:1]([O-:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[K+:55]

参加物

7

反応物 4

HCID 5281Stearic AcidHCID 14797Potassium Hydroxide2 回HCID 15953Butyl methanesulfonateHCID 31278Butyl Stearate2 回

生成物 1

HCID 23673840Potassium Stearate

試薬・触媒・溶媒 2

HCID 6395Methanesulfonic Acid触媒HCID 2631-Butanol溶媒

反応条件

温度
50 °C

実験手順

An esterification reaction mixture (94 g), consisting of butanol (ca., 4.9% w/w), butyl stearate (95.1% w/w), residual stearic acid (trace), residual methanesulfonic acid catalyst (1383 ppm) and undesired butyl methanesulfonate (613 ppm) was treated with 45% aqueous KOH (229 mg, 1.84 mmol as compared to 1.74 mmol MSA originally charged to the reaction). The resulting mixture was heating at 50° C. for 40 minutes. Without wishing to be bound by any particular theory or explanation, it is believed that reaction of butyl stearate with KOH produced potassium stearate, which retains significant solubility in the butyl stearate medium. The formed potassium stearate then reacted with butyl methanesulfonate to produce potassium methanesulfonate and butyl stearate. After filtration of the by-product solid salts (0.6325 g), analysis of the mixture by gas chromatography revealed only 300 ppm unreacted butyl methanesulfonate, a 51% reduction.

後処理

  1. additionoriginally charged to the reaction)

出典と根拠

ORDレコード
ord-e9d66033107a47bc8690c0f6b981a69b
出典データセット
uspto-grants-2007_11
特許番号
US07297813B2

関連ノート

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