4-fluoro-3- methylpentanoates () which were converted to their carbanions. Treatment with bromine gave esters , and iodine gave alkyl 4-fluoro-2-iodo- 3-methylpentanoates (). Esters and were converted to alkyl 2-azido-4-fluoro-3-methylpentanoates () whose hydrogenation gave alkyl 2-amino-4-fluoro-3-methylpentanoates (). Hydrolysis afforded γ-fluoroisoleucine ().
Synthetic methods and reactions. 128. Unusual .beta.-fluorination of secondary alkyl and cycloalkyl bromides in their reaction with NO2+ BF4- in (HF)n-pyridine solution
作者:Toshihiko Hashimoto、G. K. Surya Prakash、Joseph G. Shih、George A. Olah
DOI:10.1021/jo00381a040
日期:1987.3
HASHIMOTO TOSHIHIKO; PRAKASH G. K. SURYA; SHIH J. G.; OLAH GEORGE A., J. ORG. CHEM., 52,(1987) N 5, 931-933
作者:HASHIMOTO TOSHIHIKO、 PRAKASH G. K. SURYA、 SHIH J. G.、 OLAH GEORGE A.