三羟甲基氨基甲烷(THAM):一种对环境有益的医学上重要的四氢苯并[ b ]吡喃和吡喃环化杂环的有机合成新有机催化剂†
摘要:
已经开发了一种简单,有效且对环境无害的方案,用于使用市售,廉价,无毒且可生物降解的三羟甲基甲基甲烷(THAM)一锅,多组分合成重要的药用四氢苯并[ b ]吡喃和吡喃环杂环)作为新型有机催化剂。环境反应条件,宽范围,避免常规分离以及纯化技术以及催化剂连续五次运行的可重复使用性提高了该多组分反应规程歧管的实用性。
Tris-hydroxymethylaminomethane (THAM): a novel organocatalyst for a environmentally benign synthesis of medicinally important tetrahydrobenzo[b]pyrans and pyran-annulated heterocycles
作者:Kapil S. Pandit、Pramod V. Chavan、Uday V. Desai、Makarand A. Kulkarni、Prakash P. Wadgaonkar
DOI:10.1039/c4nj02346c
日期:——
A simple, efficient and environmentally benign protocol has been developed for the one-pot, multicomponent synthesis of medicinallyimportant tetrahydrobenzo[b]pyrans and pyran-annulated heterocycles using a commercially available, inexpensive, non-toxic, and biodegradable tris-hydroxymethylaminomethane (THAM) as a novel organocatalyst. Ambient reaction conditions, wide scope, avoidance of conventional
已经开发了一种简单,有效且对环境无害的方案,用于使用市售,廉价,无毒且可生物降解的三羟甲基甲基甲烷(THAM)一锅,多组分合成重要的药用四氢苯并[ b ]吡喃和吡喃环杂环)作为新型有机催化剂。环境反应条件,宽范围,避免常规分离以及纯化技术以及催化剂连续五次运行的可重复使用性提高了该多组分反应规程歧管的实用性。
Synthesis and characterization of a novel Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>–BenzIm-Fc[Cl]/BiOCl nano-composite and its efficient catalytic activity in the ultrasound-assisted synthesis of diverse chromene analogs
ultrasound-assisted synthesis protocol that was studied in this article exhibits some notable advantages such as short reaction times, operational simplicity, green reaction conditions, high yields and easy work-up and purification steps. In addition, the novel magnetic nano-composite could be easily recovered by an external magnetic field and reused for six-reaction cycles without significant loss of its catalytic