Epoxidation of olefinic compounds
US4093636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1977 |
| Grant date | Jun 6, 1978 |
| Priority date | — |
| Expiry date | Feb 14, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2231/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Tin catalysts are provided for epoxidizing olefinic compounds in the presence of organic hydroperoxides, in the liquid phase. These catalysts give good yields of the epoxide and of the alcohol derived from the organic hydroperoxide. They have the formula: RR 'SnCl.sub.2 (I) in which: PA1 R represents a wholly aliphatic or cycloaliphatic or aromatic or mixed aliphatic/aromatic, aliphatic/cycloaliphatic or cycloaliphatic/aromatic, inter alia alkylaryl or aralkyl, linear or branched, saturated or unsaturated monovalent hydrocarbon radical, which can optionally carry substituents, such as chlorine atoms, the number of carbon atoms being at most 20, PA1 R' represents either a chlorine atom or a monovalent organic radical of the formula: R"--Y (II) in which: PA1 Y represents an oxygen atom, or a (--O--O--) group, or a carbonyloxy group (--CO--O--), the radical R" being attached to the carbon atom of the (--CO--O--), PA1 R" may be identical or different to R and is as defined under R.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.