Selective oxidation of nitrocompounds by dimethyldioxirane
作者:Roberto Ballini、Fabrizio Papa、Paolo Bovicelli
DOI:10.1016/0040-4039(96)00598-9
日期:1996.5
An efficient monooxidation of nitrodiols was performed by dimethyldioxirane, exploiting the inhibiting effect of the nitro group on reaction at adjacent centers. The reaction appears of general value when an alcoholic moiety is in α or β to the nitro group.
Nitroaldol (Henry) reaction catalyzed by amberlyst A-21 as a far superior heterogeneous catalyst.
作者:Roberto Ballini、Giovanna Bosica、Paola Forconi
DOI:10.1016/0040-4020(95)00996-5
日期:1996.1
β-Nitroalcohols can be efficiently obtained with the help of AmberlystA-21, as heterogeneous basic catalyst, with or without solvent. This method is farsuperior to the heterogeneouscatalysts previously reported for the nitroaldol (Henry) reaction, in fact it gives higher yields with primary and secondary nitroalkanes, the formation of by-products such as nitroalkenes is avoited even if aromatic