01170nas a2200169   4500008004100000245009400041210006900135260000800204300001400212490000700226520054600233100002300779700002200802700002400824700002900848856012300877       2017                        eng d00aMCM-41-supported phosphotungstic acid-catalyzed cleavage of C-O bond in allyl aryl ethers0 aMCM41supported phosphotungstic acidcatalyzed cleavage of CO bond  cJUN  a4943-49490 v413 aRemoval of the protecting allyl group from allyl aryl ethers in the presence of other oxygen protecting groups was successfully achieved using a solid acid supported on the high surface area material MCM-41. The catalyst showed excellent activity in the presence of various electron withdrawing, electron donating, and oxidizable functional groups. The methodology is also very useful for the removal of protecting allyl groups of various natural products such as vanillin, isovanillin, and other oxygen functionalized aldehydes and ketones.1 aSakate, Sachin, S.1 aKamble, Sumit, B.1 aChikate, Rajeev, C.1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/mcm-41-supported-phosphotungstic-acid-catalyzed-cleavage-c-o-bond-allyl-aryl-ethers