Friedel‐Crafts Reactions of Octachlorocyclotetra‐(phosphazene)

Abstract

The pH-stat test can also be used to measure the decarboxylation rate of substrate analogs such as aliphatic a-keto acids and substituted phenylglyoxylic acids, which cannot be measured by the optical test. Since no auxiliary enzyme system is required, the determination can also be carried out in the presence of product.

Regio- and stereochemical control in substitution reactions of cyclophosphazenes

“…171 The corresponding reaction of N4P4C18 leads only to low yields of products primarily resulting from ring contraction. 172 Phenylation of certain partially substituted chlorophosphazenes is also successful, e.g. the series N3P3PhnCC-2n(NMe2)n (n = 1-3) is available from the dimethylamino precursors.173,174 The reaction in this case occurs at the =P(NMe2)Cl rather than the =PC12 site.…”