Synthesis of annulated oxazolidinones as potential precursors of cyclic cis-β-amino alcohols
作者:Yu. B. Chudinov、S. B. Gashev、N. B. Chernysheva、V. V. Semenov
DOI:10.1007/s11172-006-0225-z
日期:2006.1
A simple method for the synthesis of annulated 1,3-oxazolidin-2-ones from accessible ketones, acetylene, and carbon dioxide was developed. If their molecules contain arylalkyl substituents, intramolecular cyclization in acidic media gave rise to fused heterocyclic systems in high yields. The effects of the substituents in positions 3 and 5 of the oxazolidine ring on the regioselectivity of this cyclization
开发了一种从易接近的酮、乙炔和二氧化碳合成环状 1,3-恶唑烷-2-酮的简单方法。如果它们的分子含有芳烷基取代基,酸性介质中的分子内环化会以高产率产生稠合杂环系统。研究了恶唑烷环的 3 位和 5 位取代基对该环化反应的区域选择性的影响。研究了将恶唑烷酮转化为环状顺-β-氨基醇的可能性。