Acetal compounds and processes for preparing thereof, and processes for preparing aldehyde compounds from the acetal compounds
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsTakeru Watanabe, Takeshi Kinsho
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Abstract
The present invention relates to an acetal compound of the following general formula (1) and an acetal compound of the following general formula (2). The present invention relates to processes for preparing the acetal compound (2), comprising subjecting the acetal compound (1) to a hydrogenation reaction to form the acetal compound (2). The present invention provides a process for preparing 2,3,4,4-tetramethylcyclopentanecarbaldehyde of the following formula (3), comprising subjecting the acetal compound (2) to a hydrolysis reaction to form 2,3,4,4-tetramethylcyclopentanecarbaldehyde (3).
Claims14
A process for preparing an acetal compound of the following general formula (2), the process comprising:
- subjecting an acetal compound of the following general formula (1) to a hydrogenation reaction to form the acetal compound (2),
- wherein in the general formulae (1) and (2), R1s represent, independent of each other, a monovalent hydrocarbon group having 1 to 6 carbon atoms, or two R1s may form together a divalent hydrocarbon group, R1—R1, having 2 to 12 carbon atoms.
An acetal compound of the following general formula (α):
- wherein R1s represent, independent of each other, a monovalent hydrocarbon group having 1 to 6 carbon atoms, or two R1s may form together a divalent hydrocarbon group, R1—R1, having 2 to 12 carbon atoms, and the bonds represented by solid and dotted lines represent single or double bonds.
An acetal compound of the following general formula (1), wherein the bond represented by the solid and dotted lines in the general formula (α) is a double bond
- wherein R1s represent, independent of each other, as defined above.
Dependencies are inferred from the claim text.