Highly convenient one-pot conversion of aryl acylals or aryl aldehyde bisulfites into dihydropyrimidones using BI(NO3)3⋅5H2O
作者:Ahmad R. Khosropour、Mohammad M. Khodaei、Mojtaba Beygzadeh
DOI:10.1002/hc.20352
日期:2007.8
A new, facile, and efficient one-pot deprotection–cyclocondensation method is presented for the Biginelli reaction from aryl acylals or aryl aldehyde bisulfites in the presence of catalytic amounts of Bi(NO3)3 ⋅ 5H2O under solvent-free conditions. In addition, high levels of chemoselectivity for this synthesis have been achieved. © 2007 Wiley Periodicals, Inc. Heteroatom Chem 18:684–687, 2007; Published
在无溶剂条件下,在催化量的 Bi(NO3)3 ⋅ 5H2O 存在下,芳酰基或芳醛亚硫酸氢盐的 Biginelli 反应,提出了一种新的、简便且有效的单锅脱保护-环缩聚方法。此外,该合成还实现了高水平的化学选择性。© 2007 Wiley Periodicals, Inc. 杂原子化学 18:684–687, 2007; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20352