Mm. Diaz-requejo et al., Polypyrazolylborate copper(I) complexes as catalysts of the homogeneous and heterogeneous styrene epoxidation reaction, CHEM COMMUN, (19), 2000, pp. 1853-1854
The complexes BpCu (1) and Tp*Cu (2) catalyse the transformation of styrene
into styrene oxide using Oxone as the oxidising agent; the use of silica g
el-supported 1 or 2 as heterogeneous catalysts affords similar results, usi
ng water as the sole solvent.