作者:Wei-xing Chen、Jun-cai Feng、Zhao-lin Zhou、Jun-hu Zhang
DOI:10.1055/s-1989-27188
日期:——
The reaction of amino ketones with titanium tetrachloride/zinc powder has been studied in tetrahydrofuran and 1,4-dioxane under an argon atmosphere. Symmetrical 1,8-diaminoalkenes 2 were obtained from the corresponding Mannich base hydrochlorides 1 via the intermolecular reductive coupling, and azacycloalkenes 4 were prepared from diketoamines 3 via the intramolecular reductive coupling under similar conditions.
研究了氨基酮与四氯化钛/锌粉在四氢呋喃和1,4-二恶烷中、氩气氛下的反应。由相应的曼尼希碱盐酸盐1通过分子间还原偶联得到对称1,8-二氨基烯烃2,由二酮胺3通过分子内还原偶联在相似条件下得到氮杂环烯烃4。