Selective Cleavage of N-Benzyl-Protected Secondary Amines by Triphosgene
摘要:
A series of competition experiments has revealed that selective cleavage of N-benzyl-protected secondary amines can be achieved with triphosgene, thereby providing a useful range of carbamoyl chlorides.
A Novel Chiral Pentamine Ligand for Enantioselective α-Alkylation of Acyclic Lithium Amide Enolates. Optimization of Chiral Ligands for Asymmetric Reactions Using Solid-Phase Organic Synthesis
[GRAPHICS]A novel pentamine ligand has been developed for enantioselective alpha-alkylation of simple acyclic lithium amide enolates. It has been demonstrated that solid phase organic synthesis provides a powerful and rapid method for finding efficient chiral ligands.
Selective Cleavage of <i>N</i>-Benzyl-Protected Secondary Amines by Triphosgene
作者:Martin G. Banwell、Mark J. Coster、Michael J. Harvey、John Moraes
DOI:10.1021/jo0263622
日期:2003.1.1
A series of competition experiments has revealed that selective cleavage of N-benzyl-protected secondary amines can be achieved with triphosgene, thereby providing a useful range of carbamoyl chlorides.
Synthesis and Reactivity of Tripodal Complexes Containing Pendant Bases
作者:Johanna M. Blacquiere、Michael L. Pegis、Simone Raugei、Werner Kaminsky、Amélie Forget、Sarah A. Cook、Taketo Taguchi、James M. Mayer
DOI:10.1021/ic5013389
日期:2014.9.2
each metalated with cobalt(II) and zinc(II) to afford trigonal-monopyramidal complexes. The reaction of the cobalt complexes [Co(L)]– with dioxygen reversibly generates a small amount of a cobalt(III) superoxo species, which was characterized by electron paramagnetic resonance (EPR) spectroscopy. Protonation of the zinc complex Zn[NCH2CH2NC(O)CH2N(CH2Ph)2}3)]− ([Zn(TNBn)]–) with 1 equiv of acid occurs