Patent AT-E40129-T1: [Translated] PROCESS FOR THE PREPARATION OF 5,6-DIHYDRO-2HTHIOPYRAN-3-CARBOXALDEHYDE.

Description

5,6-Dihydro-2H-thiopyran-3-carboxaldehydes of the formula where R denotes hydrogen or methyl, are prepared by a method in which acrolein or crotonaldehyde is reacted with hydrogen sulfide in a mineral oil whose boiling point is higher than those of the starting materials and of the end product, and the 5,6-dihydro-2H-thiopyran-3-carboxaldehyde is obtained by distillation. These aldehydes are important intermediates for the preparation of some crop protection agents.

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21 Access the complete Patent AT-E40129-T1: [Translated] PROCESS FOR THE PREPARATION OF 5,6-DIHYDRO-2HTHIOPYRAN-3-CARBOXALDEHYDE. on the official website. https://pubchem.ncbi.nlm.nih.gov/patent/AT-E40129-T1

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