The photolysis and pyrolysis of bis-2,3-diphenylcyclopropene anhydrides: benzvalene
โ Scribed by Earle B. Hoyt Jr.; Edward J. Reineberg; Patrick Goodman; Pam Vaughan; Vlasios Georgian
- Book ID
- 108383399
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 91 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Photolysis of anhydrides (A) and (A) in low temperature matrices led to loss of CO and COe in each case, but pyridynes were not detected, and if formed at all, underwent immediate further bond fission.
The primary product of flash vacuum pyrolysis of tetraphenylphthalic anhydride at 86OoC/O.O4 Torr is 1,2,3-triphenylbenzopentalene (74%) and not 1,2,3\_triphenylbiphenylene, as suggested by Fields and Meyerson (1968) for the product of pyrolysis at 69ooC with long contact time (15-20 sec.).
Picosecond laser photolysis and transient absorption spectroscopy were applied to the direct observation of the photochromic reactions, such as ring-closure and ring-opening processes, of 1,2-bis(2,4,5-trimethyl-3-thienyl)maleic anhydride in solutions. Both in the ring-closure and the ring-opening