Hexafluoraceton als Schutzgruppen-und Aktivierungsreagenz in der Aminosäure-und Peptidchemie, 11. Mitt.: Ein neuer präparativ einfacher Zugang zu 2,5-Dioxopiperazinen und 2,5-Dioxomorpholinen
2,5-Dioxopiperazines with symmetrical as well as unsymmetrical substituent pattern can be obtained via 2,2-bis(trifluoromethyl)-1,3-oxazolidin-5-ones, and 2,5-dioxomorpholines via 2,2-bis-(trifluoromethyl)-1,3-dioxolan-4-ones, respectively.
BURGER, KLAUS;RUDOLPH, MARTIN, CHEM.-ZTG, 114,(1990) N-8, C. 249-251
作者:BURGER, KLAUS、RUDOLPH, MARTIN
DOI:——
日期:——
Hexafluoroacetone as Protecting and Activating Reagent: Site-Selective Functionalization of α-Amino Alkanedioic Acids
Methodology for the site-selective functionalization of α-amino alkanedioicacids (Asp, Glu and homologues) using hexafluoroacetone as protecting and activating reagent is described. Via new types of dielectrophiles, alternative approaches to multifunctional non-natural amino acids and some of their conjugates become readily available.