85151-95-7Relevant academic research and scientific papers
Synthesis of highly twisted and fully π-conjugated porphyrinic oligomers
Ito, Satoru,Hiroto, Satoru,Lee, Sangsu,Son, Minjung,Hisaki, Ichiro,Yoshida, Takuya,Kim, Dongho,Kobayashi, Nagao,Shinokubo, Hiroshi
, p. 142 - 145 (2015)
Highly twisted π-conjugated molecules have been attractive but challenging targets. We report here an efficient synthesis of highly twisted diporphyrins with 126° and 136° twist angles that involves an oxidative fusion reaction of planar aminoporphyrin precursors at room temperature. Repeated amination-oxidative fusion sequences provide a unidirectionally twisted tetramer. The twisting angle of the tetramer is 298°.
POLYCYCLIC COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE POLYCYCLIC COMPOUND OR THE COMPOSITION
-
, (2020/11/03)
Specific polycyclic compounds, a material for an organic electroluminescence device comprising said specific polycyclic compound, an organic electroluminescence device comprising said specific polycyclic compound, an electronic equipment comprising said organic electroluminescence device, a process for preparing said polycyclic compounds, and the use of said polycyclic compounds in an organic electroluminescence. (Formula I) (I)
Aerobic oxidation of benzylic halides to carbonyl compounds with molecular oxygen catalyzed by tempo/kno2 in aqueous media
Liu, Qifa,Lu, Ming,Yang, Fei,Wei, Wei,Sun, Feng,Yang, Zhenbang,Huang, Sufeng
scheme or table, p. 1106 - 1114 (2010/04/29)
Benzylic halides were successfully oxidized to the corresponding aldehydes and ketones in good to excellent yields in aqueous media with molecular oxygen as oxidant in the presence of catalytic amounts of TEMPO (2,2,6,6- tetramethylpiperidyl-1-oxy) and potassium nitrite (KNO2).
Oxidation of benzyl halides to aldehydes and ketones with potassium nitrate catalyzed by phase-transfer catalyst in aqueous media
Liu, Qifa,Lu, Ming,Sun, Feng,Li, Jiang,Zhao, Yuebing
experimental part, p. 4188 - 4197 (2009/04/11)
The catalytic oxidation of benzyl halides to aldehydes and ketones in aqueous media was studied under relatively mild reaction conditions by using phase-transfer catalyst combined with potassium nitrate and 10% aqueous potassium hydroxide solution. As a result, a simple high-yield procedure has been developed. Copyright Taylor & Francis Group, LLC.
Metacyclophanes and Related Compounds. 8. Preparation and Reaction of 8,16-Diformylmetacyclophanes
Tashiro, Masashi,Yamato, Takehiko
, p. 1461 - 1468 (2007/10/02)
As key synthetic compounds, 8,16-diformylmetacyclophanes 4a,b were prepared from the corresponding 8,16-bis(bromomethyl)metacyclophanes 1a,b by Kroehnke's procedure.From compounds 4, metacyclophanes having CN, COOH, CH(OH)R, or CH=CHR groups at
