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.
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
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
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
