Design Of An Affinity-based Nα-amino Protecting Group For Peptide Synthesis: Tetrabenzofluorenyl-17-methyl urethanes (TBfmoc)
A new Nα-amino protecting group (Tbfmoc) has been designed to allow selective adsorption to porous graphitised carbon, thus allowing facile separation of Nα-acetylated trunctated peptides generated as impurities in solid phase peptide synthesis.
An Efficient Synthesis of Benzofluorenes Via α-Alkoxycarbonyldiarylmethyl Cations
Rearrangement of α-alkoxycarbonyldiarylmethyl cations lead to 9-fluorenecarboxylic esters.Decarboxylation of these esters generates the fluorene derivatives 9a-f.The precursors to the cations are the α-hydroxyesters 6a-g.This conversion constitutes a facile synthesis of benzofluorenes.
Hopkinson, A. C.,Lee-Ruff, E.,Maleki, M.
p. 366 - 371
(2007/10/02)
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