Ketene Reactions with the Aminoxyl Radical TEMPO: Preparative

Pages 2614. The structure 17a reported as the transition structure for ring opening of 17 is instead that for another process. In Table 4, the ...
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Vol. 66, 2001 Annette D. Allen, Bernice Cheng, Michael H. Fenwick, Babak Givehchi, Huda Henry-Riyad, Valerij A. Nikolaev, Elena Aleksadrovna Shikhova, Daryoush Tahmassebi, Thomas T. Tidwell, and Silas Wang. Ketene Reactions with the Aminoxyl Radical TEMPO: Preparative, Kinetic, and Theoretical Studies

Pages 2614. The structure 17a reported as the transition structure for ring opening of 17 is instead that for another process. In Table 4, the B3LYP/6-311G*//B3LYP/ 6-311G** energy for 17a should be [-307.36784] hartrees and the relative energy [32.7] kcal/mol. The correct geometry has been added to the Supporting Information. We thank Professor Metin Zora, Ankara, Turkey, for bringing this discrepancy to our attention (cf. Zora, M.; Sahpaz, F.; Ozarslan, E. THEOCHEM 2002, 589-560, 111-123). JO027969L 10.1021/jo027969l Published on Web 01/21/2003

Anokha S. Ratnayake, Wesley Y. Yoshida, Susan L. Mooberry, and Thomas K. Hemscheidt*. Nomofungin: A New Microfilament Disrupting Agent.

Pages 8717-8721. The gross structure of nomofungin is in error. The compound is identical with communesin B (Numata, A.; Takahashi, C.; Ito, Y.; Takada, T.; Kawai, K.; Usami, Y.; Matsumura, E.; Imachi, M.; Ito, T.; Hasegawa, T. Tetrahedron Lett. 1993, 34, 2355-2358) as shown by a recent total synthesis (May, J. A.; Zeidan, R. K.; Stoltz, B. M. Tetrahedron Lett. Submitted for publication). We thank Professor Stoltz for making a preprint available to us. The manuscript is hereby withdrawn. We regret any inconvenience this error may cause. JO027973X 10.1021/jo027973x Published on Web 01/21/2003

1640

J. Org. Chem. 2003, 68, 1640