Copper(I)-catalyzed hydroalkoxylation/hydrogen-bonding-induced asymmetric hetero-diels-alder cycloaddition cascade: An approach to aromatic spiroketals
One thing leads to another: Bis(benzannelated) 5,6-spiroketal skeletons can be constructed by an efficient cascade process involving an unprecedented CuI-catalyzed intramolecular alkyne hydroalkoxylation and an asymmetric hetero-Diels-Alder cyc
Li, Xin,Xue, Jijun,Huang, Chusheng,Li, Ying
supporting information; experimental part
p. 903 - 906
(2012/07/03)
An approach to benzannelated [5,6]-spiroketals
Heating a variety of 2-hydroxybenzyl acetates bearing a range functional groups on the 4- or 5-position of the aromatic ring at 100°C in neat γ-methylene-γ-butyrolactone (1.0 M) for 20 hours gives a series of benzannelated [5,6]-spiroketals in 75-89% yiel
Bray, Christopher D.
body text
p. 2500 - 2502
(2009/04/11)
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