Phosphorus, Sulfur and Silicon and the Related Elements p. 231 - 254 (1998)
Update date:2022-08-05
Topics:
Dujols, Frederic
Jollet, Philippe
Mulliez, Michel
A general scheme of intramolecular nucleophilic catalysis of aminolysis of the heterocycles B is proposed (Figure 2). The requisite heterocycle D, when built with a β aminoamide residue, allows also a repetitive β peptide synthesis, as with α aminoacids (Figure 1). In order to evaluate the feasibility of both schemes, fifteen phosphor(n)diamides (table III) incorporating one residue of β aminoacid, in form of esters 3, acids 5 (models of E, Figure 2), nitrile 11, or hydrazides 12 have been synthesized starting from P(IV) dichlorides 1 (Figure 3). Unexpectedly hydrolysis of nitriles 6 b c leads to β diacids 9 b c with the regular acids 8 b c.
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