Squaric acid: an impressive organocatalyst for the synthesis of biologically relevant 2,3-dihydro-1H-perimidines in water
作者:Sushil Khopkar、Ganapati Shankarling
DOI:10.1007/s12039-019-1735-1
日期:2020.12
Abstract Squaricacid, a green, metal-free and eco-friendly organocatalyst, has been exploited for the synthesis of biologically interesting 2,3-dihydro-1H-perimidines. The reaction was performed using water as a green reaction medium and the organocatalyst can be easily recovered and reused up to four consecutive cycles without much decrease in catalytic activity. Several advantages of the present
Chitosan hydrochloride mediated efficient, green catalysis for the synthesis of perimidine derivatives
作者:Premchand B. Shelke、Suraj N. Mali、Hemchandra K. Chaudhari、Amit P. Pratap
DOI:10.1002/jhet.3700
日期:2019.11
Chitosan hydrochloride as biopolymer‐based, renewable, and recyclable heterogeneous catalyst was used for efficient one‐pot synthesis of perimidine derivatives. This newly developed greener methodology provides a very simple and greener route for the synthesis of perimidines in short time with excellent yield.
Bismuth(III) Chloride–Promoted Efficient Synthesis of Perimidine Derivatives under Ambient Conditions
作者:Junmin Zhang、Songlin Zhang
DOI:10.1080/00397910701463011
日期:2007.8
Unlocking the potential of Ficus religiosa tree bark-derived biochar sulfonic acid: a journey from synthesis and characterization to its astonishing catalytic role in green synthesis of perimidines
In this research, an acid-modified biochar catalyst was developed for the synthesis of perimidine derivatives, utilizing the bark of the Ficus religiosa (peepal) tree as a carbon source for the biochar formation. The catalyst was produced through pyrolysis at 550 °C followed by treatment with chlorosulfonic acid. The synthesized catalyst, biochar sulfonic acid (BCSA) was characterized by fourier-transform
在这项研究中,开发了一种酸改性生物炭催化剂,用于合成哌啶衍生物,利用菩提树的树皮作为生物炭形成的碳源。该催化剂是通过在 550 °C 下热解然后用氯磺酸处理而生产的。通过傅里叶变换红外光谱、X射线衍射、扫描电子显微镜和能量色散X射线光谱对合成的催化剂生物炭磺酸(BCSA)进行了表征。通过 1,8-二氨基萘与各种羰基化合物(酮和醛)的环缩合反应,在短反应时间(< 1 小时)内制备了多种萘嵌间二氮杂苯衍生物,产率很高(72-95%)。 。我们新开发的方案展示了一系列环保属性,包括无金属合成、一锅单步操作、催化剂可回收性、广泛的底物范围以及克级合成的能力。这项工作标志着可持续催化和绿色化学过程的重大进步。