Molecular Iodine-Catalyzed Facile Procedure for N-Boc Protection of Amines
摘要:
An efficient and practical protocol for the protection of various structurally and electronically divergent aryl and aliphatic amines using (Boc)(2)O in the presence of a catalytic amount of molecular iodine (10 mol %) under solvent-free conditions at ambient temperature is presented.
Process for the preparation of 2-hydroxymethyl-pyrolidine 3, 4-diols
申请人:——
公开号:US20040185539A1
公开(公告)日:2004-09-23
A process for the preparation of 2-hydroxymethyl-pyrrolidine-3,4-diols of the formulae comprising the steps of a) biooxidation of N-protected aminotetraols of the formula b) deprotection of the corresponding N-protected 5-amino-5-deoxy-pentulose c) hydrogenation of the corresponding 5-amino-5-deoxy-pentulose.
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Process for the preparation of 2-hydroxymethyl-pyrrolidine-3,4-diols
申请人:KAMPFEN Ulrich
公开号:US20090155862A1
公开(公告)日:2009-06-18
A process for the preparation of 2-hydroxymethyl-pyrrolidine-3,4-diols of the formulae:
including the steps of:
a) bioxidation of N-protected aminotetraols of the formula:
b) deprotection of the corresponding 5-amino-5-deoxy-pentulose of the formula:
and
c) hydrogenation of the corresponding 5-amino-5-deoxy-pentulose of the formula:
一种制备式为2-羟甲基吡咯烷-3,4-二醇的过程,包括以下步骤:
a) 对式为N-保护氨基四醇的生物氧化:
b) 对应的5-氨基-5-脱氧戊糖的脱保护:
c) 对应的5-氨基-5-脱氧戊糖的氢化:
PROCESS FOR THE PREPARATION OF 2-HYDROXYMETHYL-PYROLIDINE-3,4-DIOLS