ORGLIST: isolation of cyclic acetals

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From: Erik-Jan Ras (ej_ras$##$yahoo.com)
Date: Fri Jun 23 2000 - 09:47:53 EDT

I am looking for a method to isolate cylic acetals,
synthesised via a polymerisation-depolymerisation
process, from the reaction mixture (last step acid
catalysed). I have tried distillation under reduced
pressure in various ways and also SPE, all methods,
untill now, lead to degradation of the desired
product, 8- or 9-membered rings with alkyl
substituents containing 3 to 4 oxygen-atoms in the
ring, due to thermal instability.

I would be happy with any advise or reference

With regards,

EJ Ras
email: ej_ras$##$yahoo.com

=====
Erik-Jan Ras
Venuslaan 8
2957 HP Nieuw-Lekkerland
tel. 06516861

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