A triple layered helical chiral cyclophane-one-pot synthesis, enantiomer separation and chiroptical properties
The triple layered tetraazacyclophane 3a was prepared in high yield by a fourfold bond connection in a one-pot reaction sequence. The helical chirality of 3a results from the unique crossed meta/meta-cyclophane linkage. A racemisation process can only tak
Harren, Joerg,Sobanski, Adam,Nieger, Martin,Yamamoto, Chiyo,Okamoto, Yoshio,Voegtle, Fritz
Get Best Price for209394-99-05,7,23,25-tetrakis(ethoxycarbonyl)-2,11,20,29-tetrakis(4-tolylsulfonyl)-2,11,20,29-tetraaza[3.3](1,3)(1,3)[3.3](2,4)(1,3)cyclophane