The alkane-and alkene-degrading, marine sulfate-reducing bacterium Desulfatibacillum aliphaticivorans strain CV2803T , known to oxidize n-alkanes anaerobically by fumarate addition at C-2, was investigated for its 1-alkene metabolism. The total cellular fatty acids of this strain were predominantly C-(even number) (C-even) when it was grown on C-even 1-alkenes and predominantly C-(odd number) (C-odd) when it was grown on C-odd 1-alkenes. Detailed analyses of those fatty acids by gas chromatography-mass spectrometry after 6-to 10-week incubations allowed the identification of saturated 2-and 4-ethyl-, 2-and 4-methyl-, and monounsat-

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The diastereoselective MnIII‐promoted radical addition of β‐oxo ester 1 onto N‐cinnamoyloxazolidinone 2 affords, after removal of the chiral auxiliary, the enantiopure 2,5‐diaryl‐2,3‐dihydrofuran (−)‐4. Its SnCl4‐induced rearrangement leads to a 4‐aryltetralone immediate precursor of the aryltetralin lignan (+)‐phyltetralin (9). (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)