359902-06-0Relevant articles and documents
Unusual regio- and stereo-selectivity in Diels-Alder reactions between bulky N-phenylmaleimides and anthracene derivatives
Chen, Hao,Yao, Erdong,Xu, Chi,Meng, Xiao,Ma, Yuguo
supporting information, p. 5102 - 5107 (2014/07/08)
Unusual regio- and stereo-selectivity in Diels-Alder (D-A) reactions were achieved between bulky N-phenylmaleimides and anthracene derivatives. Using multiple substituents with steric hindrance on both diene and dienophile, a noticeable shift toward 1,4-addition was successfully obtained. The substrate scope in this reaction was broad and the highest yield of anti-1,4-adducts was over 90%. Novel structures of anti-1,4-adducts were confirmed by single crystal X-ray diffraction analysis. This study not only provides the first reported method of synthesizing anti-1,4-adducts and achieving otherwise unattainable regio- and stereo-selectivity, but also elucidates the importance of combining the steric effects of two reactants to shift products toward 1,4-adducts. Moreover, the resulting 1,4-adducts could be further functionalized through their halogen groups via carbon-carbon coupling reactions.
Synthesis and characterization of fluorinated poly(phenylmaleimide-co- pentafluorophenylmaleimide) for optical waveguides
Choi, Jongwan,Oh, Jin-Woo,Kim, Nakjoong
, p. 1077 - 1080 (2013/07/28)
Fluorinated polymaleimides with high thermal stability and low optical absorption loss in the optical communication wavelength of 1.55 μm were investigated for application in low-loss waveguide materials. The fluorinated polymaleimides were prepared from
