2-Methoxyethoxymethyl ether (MEM)

Protection :
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ReagentsTimeYield
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i-Pr2NEt MeO(CH2)2OCH2Cl13 h88 %i-Pr2NEt, MeO(CH2)2OCH2ClDCE80 °C, 13 h, 88%
Deprotection :
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ReagentsTimeYield
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ZnBr22 h100 %ZnBr2CH2Cl2RT, 2 h, 100%