98655-16-4Relevant academic research and scientific papers
Rhodium-catalyzed intramolecular hydroacylation of 1,2-disubstituted alkenes for the synthesis of 2-substituted indanones
Yuan, Jing,Liu, Chong,Chen, Yan,Zhang, Zhenfeng,Yan, Deyue,Zhang, Wanbin
, p. 269 - 277 (2018/12/05)
The intramolecular hydroacylation of 1,2-disubstituted alkenes was considered to be a challenging task due to the side reactions resulted from the lack of additional substituent at 1-position and the low activity caused by the steric hindrance of substituent at 2-position, and an asymmetric version has not been considered possible due to problems associated with the racemization of the products. We have partially solved these problems. Catalyzed by an activated diphosphine-Rh complex and reacted in a selected dihalogenated solvent, the intramolecular hydroacylation of o-(2-arylvinyl)benzaldehydes provided the corresponding 2-aryl-1-indanones in high yields, and its asymmetric variant using o-(2-alkylvinyl)benzaldehydes afforded chiral 2-alkyl-1-indanones in high yields and with moderate enantioselectivities.
Mass migration on a polymer surface caused by photoinduced molecular rotation
Okano, Kunihiko,Ogino, Shohei,Kawamoto, Masuki,Yamashita, Takashi
, p. 11891 - 11893 (2011/12/15)
We demonstrated the formation of a photoinduced surface relief grating using thin films comprising a photochromic molecular motor, 9-(2-phenyl-2,3- dihydro-cyclopenta[a]naphthalen-1-ylidene)-9H-fluorene. Results show that mass migration occurred by patter
Control of rotor function in light-driven molecular motors
Lubbe, Anouk S.,Ruangsupapichat, Nopporn,Caroli, Giuseppe,Feringa, Ben L.
, p. 8599 - 8610 (2011/12/16)
A study is presented on the control of rotary motion of an appending rotor unit in a light-driven molecular motor. Two new light driven molecular motors were synthesized that contain aryl groups connected to the stereogenic centers. The aryl groups behave
Fine tuning of the rotary motion by structural modification in light-driven unidirectional molecular motors
Vicario, Javier,Walko, Martin,Meetsma, Auke,Feringa, Ben L.
, p. 5127 - 5135 (2007/10/03)
The introduction of bulky substituents at the stereogenic center of light-driven second-generation molecular motors results in an acceleration of the speed of rotation. This is due to a more strained structure with elongated C=C bonds and a higher energy
