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Hueckel,W.; Holzwarth,D., Justus Liebigs Annalen der Chemie, 1966, vol. 697, p. 69 - 99
作者:Hueckel,W.、Holzwarth,D.
DOI:——
日期:——
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Regio- and stereoselective synthesis of the enantiomers of monoterpene-based β-amino acid derivatives
作者:Zsolt Szakonyi、Tamás A. Martinek、Reijo Sillanpää、Ferenc Fülöp
DOI:10.1016/j.tetasy.2007.09.028
日期:2007.10
The regio- and stereospecific addition of chlorosulfonyl isocyanate to cis-delta-pinene enantiomers has furnished monoterpene-fused beta-lactams. The observed regioselectivity can be explained by ab initio DFT modeling of transition state structures. In contrast with the less reactive alpha-pinane-fused beta-lactam 4, the resulting beta-lactams 5 and 13 containing an amino group connected to a secondary carbon possess similar reactivity to the cycloalkane-fused analogues and can be easily converted to the beta-amino acid and its protected derivatives. The base-catalyzed isomerization of the cis-amino ester afforded the corresponding trans-amino ester in moderate yield. (c) 2007 Published by Elsevier Ltd.
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Komppa, Annales Academiae Scientiarum Fennicae, Series A, 1942, vol. 59, # 1, p. 14
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Komppa; Klami, Chemische Berichte, 1937, vol. 70, p. 788,791
作者:Komppa、Klami
DOI:——
日期:——
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KASHIN, A. N.;BAKUNIN, V. N.;BELETSKAYA, I. P.;REUTOV, O. A., ZH. ORGAN. XIMII, 1982, 18, N 11, 2237-2241
作者:KASHIN, A. N.、BAKUNIN, V. N.、BELETSKAYA, I. P.、REUTOV, O. A.
DOI:——
日期:——