Methoxymethyl aminal (MOM)

Protection :
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ReagentsTimeYield
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KH MeOCH2Cl (CH2NMe2)22.5 h99 %KH, MeOCH2Cl, (CH2NMe2)2THF0 °C, 2.5 h, 99%
Deprotection :
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ReagentsTimeYield
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HCl5 h80 %HClEt2O, H2O, THFRT, 5 h, 80%