Deprotection O 0345 Mild and Chemoselective Deacetylation Method Using a Catalytic Amount of Acetyl Chloride in Methanol. -The procedure allows the efficient removal of acetyl groups in the presence of other acid-sensitive protecting groups. -(YEOM, C.-E.; LEE, S. Y.; KIM, Y. J.; KIM*, B. M.; Synlett 2005, 10, 1527-1530; Sch. Chem., Seoul Natl. Univ., Seoul 151-747, S. Korea; Eng.) -Mais 47-055

No abstract

Deprotection O 0345Efficient Chemoselective Deprotection of Silyl Ethers Using Catalytic 1-Chloroethyl Chloroformate in Methanol. -By controlling the amount of chloroformate catalyst (0.01 to 8 mol%) and the reaction time, chemoselective desilylation can be performed in the presence of bulkier silyl groups and other acid-sensitive alcohol protecting groups. In addition, the deprotection of alkylsilyl ethers proceeds selectively in the presence of aryl silyl ethers. -(YEOM, C.-E.; KIM, Y.