53109-16-3Relevant articles and documents
An Atom-Economic and Stereospecific Access to Trisubstituted Olefins through Enyne Cross Metathesis Followed by 1,4-Hydrogenation
Ratsch, Friederike,Schmalz, Hans-Günther
, p. 785 - 792 (2018/01/27)
The combination of intermolecular enyne cross metathesis and subsequent 1,4-hydrogenation opens a stereocontrolled and atom-economic access to trisubstituted olefins. By investigating different combinations of functionalized alkyne and alkene substrates, we found that the outcome (yield, E / Z ratio) of the Grubbs II-catalyzed enyne cross-metathesis step depends on the substrate's structure, the amount of the alkene (used in excess), and the (optional) presence of ethylene. In any case, the 1,4-hydrogenation, catalyzed by 1,2-dimethoxybenzene-Cr(CO) 3, proceeds stereospecifically to yield exclusively the E -products from both the E- and Z- 1,3-diene intermediates obtained by metathesis. A rather broad scope and functional group compatibility of the method is demonstrated by means of 15 examples.
Enantioselective synthesis of all-carbon quaternary stereogenic centers via copper-catalyzed asymmetric allylic alkylation of (Z)-allyl bromides with organolithium reagents
Faans-Mastral, Martn,Vitale, Romina,Prez, Manuel,Feringa, Ben L.
supporting information, p. 4209 - 4212 (2015/03/14)
A copper/phosphoramidite catalyzed asymmetric allylic alkylation of Z trisubstituted allyl bromides with organolithium reagents is reported. The reaction affords all-carbon quaternary stereogenic centers in high yields and very good regio- and enantiosele
The thermofluoric behavior of poly(fluorenetolyldiphenylamine)-oxadiazole pair in a polymer matrix
Lee, Chin-Sheng,Kuo, Cheng-Po,Chang, Chiou-Ling,Chuang, Ching-Nan,Lee, Mandy M.,Sun, Shih-Sheng,Leung, Man-Kit
, p. 20227 - 20236 (2013/11/06)
Under UV irradiation, 1,4-bis(5-(4-octan-2-ylphenyl)-1,3,4-oxadiazol-2-yl) naphthalene (NOXD) and poly(fluorenetolyldiphenylamine) (PFT) are blue light emissive in solid film. When NOXD and PFT were blended to form a neat thin-film, yellowish exciplex emi