2,3-EPOXY-2-METHYLBUTANE synthesis
- Product Name:2,3-EPOXY-2-METHYLBUTANE
- CAS Number:5076-19-7
- Molecular formula:C5H10O
- Molecular Weight:86.13
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Yield:-
Reaction Conditions:
with Nitrogen dioxide;ozone at 300; under 375.038 Torr;Product distribution / selectivity;Gas phase;
Steps:
1
EXAMPLESExample 1; Epoxidation of amylene (2-methyl-2-butene) at 300° C. and 500 mbar at Different Feed-Ratios amylene/O3 of 1.43 to 3.47The olefin gas flow (4 standard-liter/min.) consisting of amylene and N2 is preheated to 550° C. The O3/NOx gas flow (2 standard-liter/min.) consisting of 6.5 vol. % NO2, 36 vol. % of an O3/O2 mixture (from ozone generator) and 57.5 vol. % N2, starting from room temperature, is brought into contact with the preheated olefin gas flow via nozzles. The reaction temperature is 300° C. After mixing, the ozone content is 0.7 vol. % and the amylene-content is 1.0 to 2.4 vol. %. The bulk-residence time in the reaction zone is 4.8 ms.As side products, acetaldehyde and acetone are found. The results are presented in FIG. 1.The parameters at the working point of highest selectivity at the feed ratio amylene/O3=3.47 are: conversion of amylene: 41.3% selectivity for amylene oxide: 90.1 mol. % reacted amylene/O3 employed: 1.43 (molar) space-time-yield: 6240 g amylene oxide/hr/(liter reactor volume).
References:
Zylum Beteiligungsgesellschaft mbH & Co. Patente II KG US2011/144361, 2011, A1 Location in patent:Page/Page column 2
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