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Highly Efficient Deacetylation by Use of the Neutral Organotin Catalyst[tBu_2SnOH(Cl)]_2

机译:通过使用中性有机锡催化剂[tBu_2SnOH(Cl)] _ 2进行高效脱乙酰

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摘要

Deprotection of acetyl esters is effected cleanly by the neutral organotin catalyst,[tBu_2OH(Cl)]_2.The mildness of the reaction gives rise to great synthetic versatility and in the process a variety of functional groups are tolerated .Differ-entiations between primary,secondary,and tertiary alcohols and between acetyl ester and other esters are feasible.No racemization occurs with chiral acetyl esters.Exclusive deprotection of primary acetyl esters in carbohydrates and nucleosides is observed. The crude product thus obtained can be used for further reactions without purification.
机译:乙酰酯的脱保护可通过中性有机锡催化剂[tBu_2OH(Cl)] _ 2干净地进行。反应的温和性具有很大的合成通用性,在此过程中,各种官能团都可以耐受。仲,叔醇以及在乙酰基酯和其他酯之间是可行的。手性乙酰基酯不会发生外消旋作用。观察到碳水化合物和核苷中伯乙酰基酯的排他性脱保护。由此获得的粗产物无需纯化即可用于进一步的反应。

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