Stearic Acid → Potassium Stearate

HRID 1593718

반응식

HRID 1593718 반응식
[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]

참가 물질

7

반응물 4

HCID 5281Stearic AcidHCID 14797Potassium Hydroxide2회HCID 15953Butyl methanesulfonateHCID 31278Butyl Stearate2회

생성물 1

HCID 23673840Potassium Stearate

시약·촉매·용매 2

HCID 6395Methanesulfonic Acid촉매HCID 2631-Butanol용매

반응 조건

온도
50 °C

실험 절차

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.

후처리

  1. additionoriginally charged to the reaction)

출처 및 근거

ORD 기록
ord-e9d66033107a47bc8690c0f6b981a69b
출처 데이터셋
uspto-grants-2007_11
특허 번호
US07297813B2

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