• Sterically congested chiral 7,8-dioxa[6]helicene and its dihydro analogues : synthesis, regioselective functionalization, and unexpected domino Prins reactionHasan, Mohammed; Pandey, Anita D.; Khose, Vaibhav N.; Mirgane, Nitin A.; Karnik, Anil V.European journal of organic chemistry2015 / p. 3702-3712 : ill http://dx.doi.org/10.1002/ejoc.201500327