Brønsted acidic ionic liquid as an efficient and reusable catalyst for one-pot synthesis of 1-amidoalkyl 2-naphthols under solvent-free conditions
作者:Abdol R. Hajipour、Yosof Ghayeb、Nafisehsadat Sheikhan、Arnold E. Ruoho
DOI:10.1016/j.tetlet.2009.07.116
日期:2009.10
amidoalkyl naphthols from condensation of aldehydes with amides or urea and 2-naphthol in the presence of a catalytic amount of Brønstedacidicionicliquid ([TEBSA][HSO4]) under thermal solvent-free conditions. High yields, short reaction time, easy work-up and reusability of the catalyst are advantages of this procedure.
Multi-wall carbon nanotube supported Co (II) Schiff base complex: an efficient and highly reusable catalyst for synthesis of 1-amidoalkyl-2-naphthol and tetrahydrobenzo[<i>b</i>]pyran derivatives
作者:Jamshid Rakhtshah、Sadegh Salehzadeh
DOI:10.1002/aoc.3560
日期:2017.2
green catalyst for three‐component condensation of 2‐naphthol and acetamide with various aldehydes for the synthesis of 1‐amidoalkyl‐2‐naphthol derivativesunder solvent‐free conditions. Also, in a further study, the catalytic application was studied in the synthesis of tetrahydrobenzo[b]pyran derivatives via the condensation reaction of malononitrile and dimedone with several aromatic aldehydes. The
合成并使用傅里叶变换红外光谱,X射线衍射,扫描电子显微镜,能量色散X射线光谱,热重分析和电感耦合等离子体质量表征了固定在多壁碳纳米管上的固定化Co(II)Schiff碱配合物。光谱法。结果表明,负载的络合物是一种简便,生态友好,可回收,可重复使用的绿色催化剂,可用于2-萘酚和乙酰胺与各种醛的三组分缩合,以在溶剂-下合成1-酰胺基烷基-2-萘酚衍生物。免费条件。此外,在进一步的研究中,还研究了催化在四氢苯并[ b]的合成中的应用。通过丙二腈和二甲酮与几种芳香醛的缩合反应生成] pyran衍生物。此处建议的合成1-氨基烷基-2-萘酚和四氢苯并[ b ]吡喃衍生物的方法具有多个优点,例如催化剂的稳定性,可回收性和生态友好性,简单的实验条件,较短的反应时间,高至优异产量高且易于处理。
A modified reaction for the preparation of amidoalkyl naphthols
作者:Hamid Reza Shaterian、Hossein Yarahmadi
DOI:10.1016/j.tetlet.2007.12.093
日期:2008.2
An efficient synthesis of amidoalkyl naphthols using FeCl3·SiO2 as a heterogeneous catalyst is described. This thermal solvent-free procedure offers advantages such as shorter reaction times, simple work-up, excellent yields, and recovery and reusability of the catalyst.
An efficient and direct protocol for the preparation of amidoalkyl naphthols employing a multi-component, one-pot condensation reaction of beta-naphthol, aromatic aldehydes and acetamide in the presence of ferric hydrogensulfate under solvent, solvent-free and microwave conditions is described. The thermal solvent-free and microwave green procedures offer advantages such as shorter reaction times,
Multicomponent One-pot Green Synthesis of 1-Amidoalkyl-2-naphthols Promoted by p-Nitrobenzoic Acid Under Solvent-free Condition
作者:Tiangang Li、Xing Zhai、Dharamveer Singh、Rajesh K. Singh、Xuegong Xu
DOI:10.14233/ajchem.2014.16707
日期:——
A series of sixteen 1-amidoalkyl-2-naphthols derivatives were synthesized by one-pot multicomponent condensation reaction of b-naphthol with various aromatic aldehydes and amides under thermal (hot plate and oil bath) and microwave irradiation techniques promoted by p-nitrobenzoic acid and the corresponding products were obtained in good to excellent yield (82-92 %) under solvent-free condition.