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Cyclobutanones from Enamines and Ketenes by Two-stage Addition

✍ Scribed by Dipl.-Chem. P. Otto; Dr. L. A. Feiler; Prof. Dr. R. Huisgen

Publisher: John Wiley and Sons
Year: 1968
Tongue: English
Weight: 223 KB
Volume: 7
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.196807371

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✦ Synopsis

F (7) (8) U (8)O

(3),(4), R = Br (4),( 7), kl = COOCH3 Table I . Rearrangements of the monosubstituted bullvalenes ( 3 ) -( 5 ) . 254 (3600) 263 (3680) 272 (2900) sh ~ 256 (3340) 265 (3270) 276 (2240) sh --. -4.3, m; i 7 : 5.0, pseudoquartet, (together 7H); T = 6.8 (2H), broad m [el 257 (3380) 266 (3320) 278 (2320)sh 257 (3600) 266 ,(3660) 275 (2260) sh IH-NMR [bl i = 4.1 (SH), complex multiplet; T -~ 4.6 (ZH), symm. 4-line signal [dl; c = 6.6 (lH), m; 7 = 6.9 (lH), m

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