PROCESSO PARA A PREPARACAO DE 2-ALQUIL-1,4-BUTANOIS;PROCESSO PARA A PREPARACAO DE UMA MISTURA DE 1,4-BUTANODIOL E UM 2-ALQUIL-1,4-BUTANODIOL E 3-ALQUIL-TETRAHIDROFURANO PELA CICLIZACAO DE DIOIS;PROCESSO PARA A PREPARACAO DE UMA MISTURA TETRAHIDROFURANO E 3-METILTETRAHIDROFURANO PELA CICLIZACAO DE DIOIS;E PROCESSO PARA A PREPARACAO DE UM COPOLIMERO A PARTIR DE UMA MISTURA DE TETRAHIDROFURANO E 3-METILTETRAHIDROFURANO

PROCESSO PARA A PREPARACAO DE 2-ALQUIL-1,4-BUTANOIS;PROCESSO PARA A PREPARACAO DE UMA MISTURA DE 1,4-BUTANODIOL E UM 2-ALQUIL-1,4-BUTANODIOL E 3-ALQUIL-TETRAHIDROFURANO PELA CICLIZACAO DE DIOIS;PROCESSO PARA A PREPARACAO DE UMA MISTURA TETRAHIDROFURANO E 3-METILTETRAHIDROFURANO PELA CICLIZACAO DE DIOIS;E PROCESSO PARA A PREPARACAO DE UM COPOLIMERO A PARTIR DE UMA MISTURA DE TETRAHIDROFURANO E 3-METILTETRAHIDROFURANO

Process for preparing 2-alkyl-1,4-butanediols and mixtures with 1,4-butanediol which comprises bringing together, at an initial alkaline pH, and at a temperature and pressure suitable for reaction, a mixture of 4-hydroxybutyraldehyde and/or its cyclic acetal, 2-hydroxytetrahydrofuran, hydrogen, an u...

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Bibliographische Detailangaben
1. Verfasser: RICHARD EDWARD ERNST
Format: Patent
Sprache:por
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Zusammenfassung:Process for preparing 2-alkyl-1,4-butanediols and mixtures with 1,4-butanediol which comprises bringing together, at an initial alkaline pH, and at a temperature and pressure suitable for reaction, a mixture of 4-hydroxybutyraldehyde and/or its cyclic acetal, 2-hydroxytetrahydrofuran, hydrogen, an unsubstituted aliphatic aldehyde, especially formaldehyde, and a hydrogenation catalyst. Also processes for preparing mixtures of tetrahydrofuran and 3-alkyltetrahydrofuran from the diol mixtures, and copolymers from the tetrahydrofuran mixtures.