New one-pot multistep process with multifunctional catalysts: decreasing the E factor in the synthesis of fine chemicals
作者:Maria J. Climent、Avelino Corma、Sara Iborra、Maria Mifsud、Alexandra Velty
DOI:10.1039/b919660a
日期:——
The synthesis of a series of fine chemicals (4-(4-methoxyphenyl)-2-butanone, 4-(6,6-dimethylbicyclo[3,1,1]hept-2-en-2-yl)-2-butanone, and 2-cyclopentylcylopentanone) has been performed through a simple process that involves one-pot multi-step reactions (condensation–dehydration–reduction) using multifunctional base–acid-metal catalysts. The E factor for the specific process, as well as for the global process that includes the manufacturing of the reactants, has been calculated and compared with those obtained using conventional methods. In various cases, it is demonstrated that by means of process intensification with multifunctional solid catalysts, it is possible to decrease the E factor by one order of magnitude or more with respect to any of the manufacturing routes reported to date.
一系列精细化学品(4-(4-甲氧基苯基)-2-丁酮,4-(6,6-二甲基双环[3,1,1]庚-2-烯-2-基)-2-丁酮和2-环戊基环戊酮)的合成通过一种简单的工艺实现,该工艺涉及一锅多步反应(缩合-脱水-还原),使用多功能的碱-酸-金属催化剂。针对特定工艺的E因子,以及包括反应物制造在内的全球工艺的E因子已被计算并与传统方法得到的结果进行了比较。在多种情况下,证明通过使用多功能固体催化剂强化工艺,可以使E因子相对于迄今为止报告的任何制造路线降低一个数量级或更多。