Alkylidenediquinocyclopropanes and Diarylcyclopropenes and method for preparation
US4133821A · kind A · utility
19Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | Mar 15, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Mar 15, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alkylidenediquinocyclopropanes and diarylcyclopropenes and the preparation of the former by oxidation of the latter and which are characterized by low energy electronic absorption, pronounced dichroism and characteristic specular reflectance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.