([2](ClO4)2) have been synthesized. The valence state-sensitive bond distances of coordinated bqdi [C–N: 1.311(5)/1.322(5) Å in [1]ClO4; 1.316(7)/1.314(7) Å in molecule A and 1.315(6)/1.299(7) Å in molecule B of [2](ClO4)2] imply its fully oxidised quinonediimine (bqdi0) character. DFT calculations of 1+ confirm the RuII–bqdi0} versus the antiferromagnetically coupled RuIII–bqdi˙−} alternative. The
Palladium(0) Catalysed Conversion of α-Nitroepoxides into 1,2-Diketones
作者:Yashwànt D. Vankar、Surendra P. Singh
DOI:10.1246/cl.1986.1939
日期:1986.11.5
A variety of α-nitroepoxides have been found to undergo conversion to the corresponding 1,2-diketones with Pd(PPh3)4. Two examples form α-nitroketones instead of 1,2-diketones.
Chemistry of α-nitroepoxides : Synthesis of useful intermediates via nucleophilic ring opening of α-nitroepoxides
作者:Yashwant D. Vankar、Kavita Shah、Anita Bawa、Surendra P. Singh
DOI:10.1016/s0040-4020(01)81002-4
日期:1991.10
Various α-nitroepoxides are converted into corresponding 1,2-diketones via two different ways of ring opening viz. with Pd(O) and with DMSO/BF3·Et2O(or ClSiMe3). In addition to this, a variety of nucleophiles are reacted with α-nitrocyclopentene oxide 6 and α-nitro-cyclohexene oxide 7 to form the corresponding α-substituted ketones which are useful intermediates in organic synthesis. Two of the products