Nano-zirconia as an excellent nano support for immobilization of sulfonic acid: a new, efficient and highly recyclable heterogeneous solid acid nanocatalyst for multicomponent reactions
A convenient method for the synthesis of 1,8-dioxodecahydroacridine derivatives using 1-methylimidazolium tricyanomethanide {[HMIM]C(CN)3} as a nanostructured molten salt catalyst
作者:Mohammad Ali Zolfigol、Neda Bahrami-Nejad、Saeed Baghery
DOI:10.1016/j.molliq.2016.03.006
日期:2016.6
A practical and convenientmethod for the synthesis of 1,8-dioxodecahydroacridine derivatives was achieved via the one-pot condensation reaction of cyclic 1,3-diketone, aldehydes and various anilines or ammonium acetate in the presence of 1-methylimidazolium tricyanomethanide [HMIM]C(CN)3} as a nanostructured molten salt (NMS) catalyst at room temperature. In the present work, more than thirty products
The invention relates to new and known tricyclic dione derivatives of the general formula ##STR1## wherein W represents hydrogen or lower alkyl; X represents lower alkyl; Y represents NR1; R.sup.1 represents hydrogen, lower alkyl, lower alkoxycarbonyl or lower alkoxycarbonyl-lower alkyl; Z represents aryl or heteroaryl optionally substituted by one or more halo, cyano, nitro, lower alkyl, halo-lower alkyl, lower alkoxy, halo-lower alkoxy, COR.sup.2, OCOR.sup.2, CO.sub.2 R.sup.2, OR.sup.2, S(O).sub.n R.sup.2, NR.sup.2 R.sup.3, N(R.sup.4)COR.sup.5, Ar, Ar-lower alkyl, Het or Het-lower alkyl substituents and/or on adjacent carbon atoms by lower alkylenedioxy; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each individually represent hydrogen, lower alkyl, Ar, Ar-lower alkyl, Het or Het-lower alkyl substituents; or R.sup.2 and R.sup.3 together represent the group --CH.dbd.CH--CH.dbd.CH-- or --CH.dbd.N--CH.dbd.CH--; Ar represents aryl optionally substituted by one or more halo, lower alkyl, lower alkoxy or nitro substituents; Het represents heteroaryl optionally substituted by one or more halo, lower alkyl, lower alkoxy or nitro substituents; and n stands for 0, 1 or 2 and to their salts which are inhibitors of herpes simplex virus thymidine kinase.
Melamine-formaldehyde resin supported H<sup>+</sup>-catalyzed three-component synthesis of 1,8-dioxo-decahydroacridine derivatives in water and under solvent-free conditions
Abstract A convenient and practical synthesis of 1,8-dioxo-decahydroacridine derivatives using various aldehydes, 5,5-dimethyl-1,3-cyclohexanedione and thiourea in water, was successfully carried out in the presence of melamine-formaldehyde resin supported H+ (MFRH) as a catalyst. Undersolvent-freeconditions, rapid and efficientsynthesis of 1,8-dioxo-decahydroacridine and N-substituted 1,8-dioxo-decahydroacridine
Synthesis of dibenzoxanthene and acridine derivatives catalyzed by 1,3-disulfonic acid imidazolium carboxylate ionic liquids
作者:Arup Kumar Dutta、Pinky Gogoi、Ruli Borah
DOI:10.1039/c4ra07323a
日期:——
1,3-Disulfonic acid imidazolium carboxylate [DSIM][X] (where X = [CH3COO]−, [CCl3COO]−, [CF3COO]−) ILs were synthesized and their catalytic activity examined for the preparation of 14H-dibenzo[a,j]xanthene and 1,8-dioxo-decahydroacridine derivatives under solvent-free conditions and in water at 80–100 °C.
Hollow Fe3O4@DA-SO3H: an efficient and reusable heterogeneous nano-magnetic acid catalyst for synthesis of dihydropyridine and dioxodecahydroacridine derivatives
highly stable and efficient super-paramagnetic catalyst, H-Fe3O4@DA-SO3H, involving hollow morphology of Fe3O4 as core and dopamine as shell was prepared through hydrothermal template-free method. It has been used as a new and recoverable catalyst for various one-pot multi-component organic reactions such as synthesis of 1,4-dihydropyridine (1,4-DHP) and 1,8-dioxodecahyroacridine derivatives. The new magnetic
摘要在这项工作中,首次涉及高度稳定和高效的超顺磁性催化剂H-Fe 3 O 4 @ DA-SO 3 H,涉及中空形态的Fe 3 O 4采用无水热模板法制备了以多巴胺为核,多巴胺为壳的方法。它已被用作新的可回收催化剂,用于各种一锅多组分有机反应,例如合成1,4-二氢吡啶(1,4-DHP)和1,8-二氧杂脱氧代ac啶衍生物。对该新型磁性催化剂进行了不同的分析,包括X射线粉末衍射(XRD),傅里叶变换红外光谱(FT-IR),场发射扫描电子显微镜(FE-SEM),透射电子显微镜(TEM),能量色散X射线光谱(EDX),振动样品磁力计(VSM)和热重分析(TGA)。此外,制备的空心Fe 3 O 4的ρ 壳计算出的微颗粒仅比固态球状Fe 3 O 4轻。常规地,使用外磁体回收催化剂,并且至少在六个连续的运行中重复使用催化剂,而没有明显损失其活性。 图形概要