J. Org. Chem. 1999, 64, 2599
2599
Additions and Corrections Vol. 63, 1998 Harm P. Dijkstra, Ronald ten Have, and Albert M. van Leusen*. A Direct Synthesis of 2-(Trimethylstannyl)pyrroles from Michael Acceptors and Stannylated Tosylmethyl Isocyanide.
Page 5332. Our claim that “stannylated pyrroles with a free N-H function have not been reported previously” appears to be incorrect. Two such compounds [5-(tri-nbutylstannyl)pyrrole-2-carbaldehyde1,2 and 4-(trimethylstannyl)pyrrole-2-carbaldehyde2] have been reported by Dubac et al. The latter compound, furthermore, is a second example of a 3-stannylpyrrole. (1) Denat, F.; Gaspard-Iloughmane, H.; Dubac, J. J. Organomet. Chem. 1992, 423, 173. (2) Veith, M.; Zimmer, M.; Huch, V.; Denat, F.; Gaspard-Iloughmane, H.; Dubac, J. Organometallics 1993, 12, 1012.
Page 313, first column. The sentence which reads “For example, Table 1, entry 1a, shows a 40% yield for the normal addition of the bithiophene anion to the electrophile 1.” should read “For example, Table 1, entry 1a, shows a 40% yield for the normal addition of the electrophile 1 to the bithiophene anion.” Page 313, first column. The sentence which reads “However, the same heteroarenyl/anion gave a 69% yield (Table 1, entry 1b) for the inverse addition of the electrophile to the anion.” should read “However, the same heteroarenyl/anion gave a 68% yield (Table 1, entry 1b) for the inverse addition of the anion to the electrophile.” Page 314, Table 1, entry 3. the eq. of BuLi ) eq. of 1 should be 2.2.
JO994000X
JO994001P
10.1021/jo994000x Published on Web 03/11/1999
10.1021/jo994001p Published on Web 03/11/1999
Kenneth K. Laali* and Mutsuo Tanaka. Charge Delocalization in Persistent Benz[a]anthracenium Cations BAH+ and Related R-Carbocations/Carboxonium Ions: Modeling Epoxide Ring Opening in Potent Carcinogens.
Page 7280: There is no Supporting Information for this paper.
Benjamin W. Gung,* James A. MacKay, and Dong Zou. Substitutent Effect on Intramolecular Hydrogen Bonding in β-Amino Acid-Containing Polyamides.
Page 700: The paper was published without the Supporting Information paragraph.
JO994986A 10.1021/jo994986a Published on Web 03/17/1999 Vol. 64, 1999
Supporting Information Available: Experimental procedures and NMR data for obtained compounds. This material is available free of charge via the Internet at http://pubs.acs.org. JO994983Y
Terry V. Hughes and Michael P. Cava*. Electrophilic Cyanations Using 1-Cyanobenzotriazole: sp2 and sp Carbanions.
10.1021/jo994983y Published on Web 03/11/1999
