A vacuum heating operation at 623 K on the surfaces of SiO<sub>2</sub>-supported promoted ca-talysts makes it possible to reveal the electron transfer from Co a
The reaction of m-dimethoxybenzene with crotonic acid in the presence of PPA affords anunexpected compound,which has been proved to be a dimer by H-NMR and MS.T
The stereoselective total synthesis of (S)-(+)-γ-curcumene starting from p-bromo-phenylmethyl ether via an asymmetric Grignard cross-coupling reaction in 45%ee