5414 J. Org. Chem., Vol. 48, No. 26, 1983
Rudolph A. Abramovitch,* Melanie Cooper, Suresh Iyer, Ramasubbu Jeyaraman, and J. August0 Rosario Rodrigues. Intramolecular Cyclization of Arylnitrenium Ions. Formation of Carbon-Carbon Bonds and of Lactones. Page 4820. The name of the last author is Rodrigues, not Rodriguez.
Francesco Nicotra, Fiamma Ronchetti, and Giovanni Russo*. Influence of the Protective Groups on the Ring Closure of gluco-Octenoates. Page 5381. Careful examination of 200-MHz NMR spectra of the compounds described in our paper led us to formulate for compounds 2, 8, and 10 the revised octa-2,4-dienoate structure shown. Therefore, the experiments described are best summarized by the scheme reported, which replaces Scheme I.
R2@ 0 ?-OH
Additions and Corrections Page 955. Column 2, line 3. Should read ... would be exothermic by ca. 17 kcal/mol. Page 958. Column 1,line 9. Replace “rules out the intermediacy of the spirocyclopropylcyclohexadienylradical.” by “is consistent with the reported kinetics (ref 7) for the /3-phenylethyl radical rearrangement to the spirocyclopropylcyclohexadienyl radical.”
Alexander PerjBssy, Ronald G. Jones,* Susan L. McClair, and Joyce M. Wilkins. Infrared Spectra and Transmission of Electronic Effects in Substituted Phenyl N,N-Dimethylcarbamates and S-Phenyl N,N-Dimethylthiocarbamates. Page 1267. Column 2. The last sentence (beginning with “The preference of ...”) should be replaced by the following: “In contrast to methyl Nfl-dimethylcarbamate, the preference of the s-trans conformation by compounds of series I could result from a larger steric effect of the phenoxy group than of methoxy and, as a result of a strong inductive effect of the phenyl group, also from a reduced repulsion between the lone-pair electrons of the ether oxygen and nitrogen atoms (the so-called “rabbit ear”; of Hutchins and Eliel),18J9which otherwise causes a destabilization of the s-trans conformation.” Page 1269. First column, bottom. The mathematical sign of up+ for (OCONMe2) should be reversed. The correct value is upc -0.08.
Fausto Ramirez,* James F. Marecek, and Shrishailam S. Yemul. Synthesis of Steroid Phosphates via Monomeric Metaphosphate. -OR’
-OR1
1
I
OR^
Page 1418. Column 2, 2nd line from the bottom. “7dehydrocholesterol” should read “7-dehydrocholesterol acetate”. This acetate was converted into A5~7~9-cholestatrien-3P-ol acetate by mercuric acetate oxidation as described in the paper.
OR^ Ronald F. Childs,* D. Lindsay Mulholland, Aravamuthan Varadarajan, and Shahin Yeroushalmi. Heats of Protonation of Unsaturated Ketones. A Thermodynamic Investigation of the Importance of Homoaromatic Stabilization. Page 1432. Compound 21 should be 4-methylpent-3-en-2-one and not cis-pent-3-en-2-one as indicated by the structural formula.
w
11, R ’ = Bzl; R s = Et
Vol. 48, 1983
Thomas E. Young* and Brion W. Babbitt. Electrochemical Study of the Oxidation of a-Methyldopamine, a-Methylnoradrenaline, and Dopamine. Page 565. Scheme I. Structure 7a-d is missing a double bond in the 2-3 position and should read:
7a-d
George R. Pettit* and Paul S. Nelson. Synthesis of the Streptomyces ambofaciens Antineoplastic Constituent &Diazo5-oxo-~-norleucine. Page 741. In footnote 1, line 1, 84th should be 85; line 2, 85 should be 84th.
George A. Olah,* V. V. Krishnamurthy, Brij P. Singh, and Pradeep S. Iyer. Structure of w-Arylalkyl Radicals: A I3C CIDNP Investigation.
Frederick J. Goetz, Jerry A. Hirsch,* and Robert L. Augustine. Ring-Chain Tautomerism in Anions Derived from Substituted (Ary1ideneamino)toluenes and (Ary1ideneamino)oxindoles. Page 2468. We regret having overlooked the following reference to relevant cyclizations when writing our paper and are grateful to Dr. Speckamp for calling it to our attention: Speckamp, W. N.; Veenstra, S. J.; Dijkink, J.; Fortgens, R. J . Am. Chem. SOC. 1981, 103,4643-4645.
Kazunobu Harano, Yasushi Okamoto, Masami Yasuda, Kaoru Ueyama, and Ken Kanematsu*. Chemical Reactivity and Molecular Structure Relationship of Highly Strained Cage Oxetanes. Page 2729. Table I. NMR designations for 4ck: change H, to Hgr Hg t o H6, J9,ii to Js,s, Hi1 to Hg, Hi2 to H9, Jii.12 to J 8 , 9 .
Peter L. Rinaldi* and Robert G. Salomon. Application of Two-Dimensional F T NMR to the Relative Configurational Assignment of 8-Methyl-4-oxo-lO-(trimethylsiloxy)tetracyclo[7.2.1.02~~.03~7]dodecane-10-carbonitrile. Page 3185. The assignments in Table I should be changed as follows: entry 3 should be assigned to c6 and entry 5 should be assigned to C5. Page 3187. Line 13 of the second column should be changed from “5 ( 6 1 3 ~42.7) in Figure 6” to “5 ( 6 1 3 ~ 37.7) in Figure 6”.
