Synthesis of Bicyclic Cyclopropylamines by Intramolecular

ORGANIC LETTERS 2000 Vol. 2, No. 7 1009

Additions and Corrections

Vol. 1, 1999

Bin Cao, Dong Xiao, and Madeleine M. Joullie´* Synthesis of Bicyclic Cyclopropylamines by Intramolecular Cyclopropanation of N-Allylamino Acid Dimethylamides. Page 1799. We inadvertently omitted references to the work of Professor Sato and his group. These are as follows. (1) Kasatkin, A.; Sato, F. Tetrahedron Lett. 1995, 36, 60796082. (2) Kasatkin, A.; Kobayashi, K.; Okamoto, S.; Sato, F. Tetrahedron Lett. 1996, 37, 1849-1852. (3) Okamoto, S.; Iwakubo, M.; Kobayashi, K.; Sato, F. J. Am. Chem. Soc. 1997, 119, 6984-6990. The first reference (1) refers to the first intramolecular cyclopropanation of ω-vinyl esters. The second reference (2) describes the same results as those reported in ref 8 of our paper, and the last reference (3) reports that titaniummediated cyclization provides an efficient and practical method for synthesizing N-heterocycles from amino acids. OL990411O 10.1021/ol990411o Published on Web 02/10/2000