Proposed hydrolytic degradation

Figure 5 shows the thermally induced hydrolytic degradation of citral (geranial and neral) into 2-methyl-2-hepten-6-one and acetaldehyde. It is similar to the reaction mechanism as proposed by Josephson and Lindsay (22, 23). The relatively higher amount of 2-methyl-2-hepten-6-one and the concomitant lower amount of geranial and neral in steam distilled oil confirmed again a previous report (24). 

We have also prepared 1-amino-l-deoxy-2,3,4-tti-0-methyl-L-arabinitol and -D-xyhtol, which wctb transformed into a safes of polyfesto" amide)s [110, 111] and copolyfesta amide)s [112], whose stracture and propoties wo e carefully studied. Their hydrolytic degradation was also investigated, and a mechanism proposed for this process [113—115]. 

For the hydrolytic degradation of polyphosphazenes several mechanisms have been proposed (Allcock et al, 1977-1994 Goedemoed et al., 1988). Ffowever, analysis of the degradation products revealed that the main hydrolysis pathway involves release of the amino acid ester side group, followed by hydrolysis of the ester with formation of the amino acid and the alcohol (Crommen et al, 1992) (Fiigpre 12). 

Figure 2.2 The proposed mechanism for the hydrolytic degradation of poly(organo)phosphazenes...

The kinetics of the autocatalyzed hydrolytic degradation proposed by Pitt et al. were derived according to the following equations ... 

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