Reactions of allylic carbonates catalyzed by palladium, rhodium, ruthenium, molybdenum, and nickel complexes; allylation of carbonucleophiles and decarboxylation- dehydrogenation
作者:Ichiro Minami、Isao Shimizu、Jiro Tsuji
DOI:10.1016/0022-328x(85)80354-5
日期:1985.11
carbonucleophiles with allylic carbonatescatalyzed by various transition metal complexes has been studied. Palladium, rhodium, ruthenium, nickel, and molybdenum complexes were found to be active catalysts. The rhodium catalyst showed a different regioselectivity from the other catalysts, the reaction can proceed without allylic rearrangement. In the absence of nucleophiles, allyl alkyl carbonates were converted into
Carbon, on active duty: The addition of activatedcarbon into the reaction medium appears to be a simple and efficient method to solve mass‐transfer limitations in aqueousorganometalliccatalysis (see figure).
Palladium-catalyzed oxidation of alcohols via their allyl carbonates under neutral conditions
作者:Jiro Tsuji、Ichiro Minami、Isao Shimizu
DOI:10.1016/s0040-4039(01)81291-0
日期:——
Treatment of alkyl allyl carbonates derived from various alcohols with a palladium catalyst in MeCN affords ketones and aldehydes in high yields. This new method of oxidation of alcohols can be applied to various alcohols except simple primary alcohols.
Deallyloxy- and debenzyloxycarbonylation of protected alcohols, amines and thiols via a naphthalene-catalysed lithiation reaction
作者:Cherif Behloul、David Guijarro、Miguel Yus
DOI:10.1016/j.tet.2005.07.055
日期:2005.9
and Cbz-protected alcohols, amines and thiols in THF at 0 °C led, after quenching with methanol, to the recovery of the free alcohols, amines and thiols in short reaction times and with very good yields. The selectivity for the removal of the Alloc- or the Cbz- group in a polyfunctionalised substrate has been studied. The selective reductive cleavage of a benzylic carbon–oxygenbond was achieved in the