A Practical Method for Selective Cleavage of atert-ButoxycarbamoylN-Protective Group fromN,N-Diprotected α-Amino Acid Derivatives Using Montmorillonite K-10
作者:J. Nicolás Hernández、Fernando R. Pinacho Crisóstomo、Tomás Martín、Víctor S. Martín
DOI:10.1002/ejoc.200700296
日期:2007.10
9 pages, 3 tables, 1 scheme.-- Supporting information (26 pages) available at: http://www.wiley-vch.de/contents/jc_2046/2007/o200700296_s.pdf
A New Selective Cleavage of <i>N</i>,<i>N</i>-Dicarbamoyl-Protected Amines Using Lithium Bromide
作者:J. Nicolás Hernández、Miguel A. Ramírez、Víctor S. Martín
DOI:10.1021/jo026300b
日期:2003.2.1
A mild and new procedure for the selective cleavage of an alkoxycarbonyl group (Boc, CBz) in N,N-dicarbamoyl-protected amino compounds is described. The method is based on the use of lithium bromide in acetonitrile and is compatible with a large range of other functionalities present in the substrates. Compared with other reported methodologies, the procedure is particularly useful for the Cbz-selective