Reversal of Regioselectivity and Enhancement of Rates of Nitrile Oxide Cycloadditions through Transient Attachment of Dipolarophiles to Cyclodextrins
作者:Lorna Barr、Stephen F. Lincoln、Christopher J. Easton
DOI:10.1002/chem.200600627
日期:2006.11.15
4-tert-butylbenzonitrile oxide with acrylicacid, methacrylicacid, and crotonicacid is also altered by formation of the corresponding cyclodextrin esters, by factors of 500, >10, and >100, respectively. The rates of cycloaddition are also increased by up to 475 times, and in these cases the products of cycloaddition are readily released from the cyclodextrin through ester hydrolysis. Incorporating these