Four different 1-aminocyclohexanes bearing a tethered thioxanthone group in the 2-position were prepared. The synthesis commenced with the respective N-protected β-amino acids, the carboxyl group of which was employed for the introduction of the thioxanthone moiety. After construction of the thioxanthone and protectinggroup removal, the conversion of the aminogroup into the respective thiourea was
The hamburger-shape photocatalyst: thioxanthone-based chiral [2.2]paracyclophane for enantioselective visible-light photocatalysis of 3-methylquinoxalin-2(1<i>H</i>)-one and styrenes
A new thioxanthone-based photocatalyst with a [2.2]paracyclophane skeleton and planar chirality has been developed and utilized in the visible light-mediated enantioselective aza Patern–Büchi reaction.