(+-)-Pantolactone → Keto-pantoyllactone

HRID 1200267

반응식

HRID 1200267 반응식
[CH3:1][C:2]1([CH3:9])[CH:7]([OH:8])[C:5](=[O:6])[O:4][CH2:3]1>[O-2].[Fe+3].[O-2].[O-2].[Fe+3].[Mo](=O)(=O)=O>[CH3:1][C:2]1([CH3:9])[C:7](=[O:8])[C:5](=[O:6])[O:4][CH2:3]1

참가 물질

4

반응물 1

HCID 989(+-)-Pantolactone2회

생성물 1

HCID 39Keto-pantoyllactone

시약·촉매·용매 2

HCID 14802Molybdenum trioxide촉매HCID 14833Hematite (Fe2O3)촉매

실험 절차

A mixture of iron (III) oxide and molybdenum trioxide (G-105 from Girdler) is used as the catalyst in the reactor described in Example 1 and the temperature of the air bath is adjusted to 225° C. 60 l of air and 33 g of pantolactone are subsequently added hourly to the evaporator. 96% of the pantolactone are transformed and ketopantolactone is formed with a selectivity of 83%.

후처리

  1. customis adjusted to 225° C

출처 및 근거

ORD 기록
ord-c781faa2b1a44c349a9a32b4dad84e85
출처 데이터셋
uspto-grants-1990_02
특허 번호
US04904805

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