Process for the production of alkene-1,5-diols
US4254289A · kind A · utility
1Cited by
3References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 12, 1977 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Jan 12, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In the reaction of 3-methyl-3-buten-1-ol with aqueous formaldehyde forming isomeric alkene-1,5-diols, particularly 3-methylene-1,5-pentanediol and 3-methyl-2-pentene-1,5-diol, it has been found that yields of the diols surprisingly are substantially increased if the reaction is effected in the presence of added isobutene and the mol ratio of 3-methyl-3-buten-1-ol to formaldehyde is at least 1:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.