.alpha.-Ethyny benzhydrols
US4066709A · kind A · utility
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Assignee
Inventors
Key dates
| Filing date | Nov 10, 1975 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
.alpha.-ethynyl-benzhydrols, namely 2,5-dimethyl-.alpha.-ethynyl and 4-n-butyl-.alpha.-ethynyl benzhydrol, are made by reacting the starting benzophenone with acetylene in a solvent delivering no protons, in the presence of an alkali metal tertiary alcoholate, preferably potassium-ter.-butylate or potassium-tert.-amylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.