非表示:
キーワード:
-
要旨:
2,s− and 2,6−dideuterobenzoquinone−l,4 were
prepared by a direct catalytic (NaBD4/PdC12)
exchange of bromine in the corresponding dibromo derivatives and the subsequent oxidation with Ag20. The structure of the products was unambiguously established by proton−carbon and deuteron−carbon splitting pattern of their NMR spectra