- 作者: 林助強 ; 黃芳榮 ; 林俊杰 等
- 作者服務機構: 交通大學應用化學系
- 中文摘要: Several novel tetraacetal oxa-cage compounds (9a-9f) were synthesized from the corresponding 2-methylthiofurans(1a-1f) by a short sequence. The structures of these tetraoxa-cage compounds were deduced from their spectral data and proven by X-ray analysis of (9a). Ozonolysis of the endo adducts (5a-5f) in CH/sub 2/Cl/sub 2/ at -78.degree.C followed by reduction with dimethyl sulfide gave the tetraoxa-cages (9a-9f) in 65%-75% yields, respectively. Ozonolysis of the exo adduct (6a) under the same reaction conditions gave the tetracarbonyl compound (10). The phenylthio group substituted tetraoxa-cage (13) and the tetraacetal oxa-cage (17), with one more carbon atom on the apex position, were also synthesized in a similar sequence.
- 英文摘要: --
- 中文關鍵字: Synthesis; Tetraacetal; Methylthiofuran; Structure
- 英文關鍵字: 合成;四縮醛;甲基硫喃;結構