A convenient and efficient application of microencapsulated/methylrhenium trioxide (MTO) and MTO/pyridine systems for the selective oxidn. of cardanol derivs. is reported. Environmentally friendly and low-cost H2O2 was used as the oxygen atom donor. The catalysts were stable systems for at least five recycling expts. In the oxidn. of C2 alkyl-substituted cardanol derivs. I (R = Me3C, EtMe2C), high conversion and yields of the corresponding para-benzoquinones were obtained. By contrast, in the absence of the C2 substituent, an unprecedented oxidative degrdn. to di-γ-lactone deriv. II was obsd
Microencapsulated methylrhenium trioxide MTO/H2O2 systems for the oxidation of cardanol derivatives / Saladino, R., E., M., Attanasi, O.A., P., F.. - In: PURE AND APPLIED CHEMISTRY. - ISSN 0033-4545. - 75:(2003), pp. 261-268.
Microencapsulated methylrhenium trioxide MTO/H2O2 systems for the oxidation of cardanol derivatives
SALADINO R;
2003
Abstract
A convenient and efficient application of microencapsulated/methylrhenium trioxide (MTO) and MTO/pyridine systems for the selective oxidn. of cardanol derivs. is reported. Environmentally friendly and low-cost H2O2 was used as the oxygen atom donor. The catalysts were stable systems for at least five recycling expts. In the oxidn. of C2 alkyl-substituted cardanol derivs. I (R = Me3C, EtMe2C), high conversion and yields of the corresponding para-benzoquinones were obtained. By contrast, in the absence of the C2 substituent, an unprecedented oxidative degrdn. to di-γ-lactone deriv. II was obsdI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
