A Mild Silica Gel Promoted Synthesis and Initial Functional Study of Tetrapyridyl Tetrahydropyrrolopyrrolones
作者:Chao Gao、Jiwang Fang、Lijin Xu、Han-Yuan Gong
DOI:10.1021/acs.orglett.2c02095
日期:2022.7.29
strategy with yields up to 82% was reported to generate 2-(pyridin-2-yl)-2-(3,3a,6-tris(5-pyridin-2-yl)-5-oxohexahydropyrrolo[3,2-b] pyrrol-2(1H)-ylidene)acetonitrile 1a and its derivatives 1b–d. Silica gel promoted quantitative conversion from stable intermediate to 1a within 30 min at room temperature. Finally, four chemical σ bonds and two chiral carbons with high diastereoselectivity were achieved
据报道,产率高达 82% 的一锅法可生成 2-(pyridin-2-yl)-2-(3,3a,6-tris(5-pyridin-2-yl)-5-oxohexahydropyrrolo[3 ,2- b ] pyrrol-2(1 H )-ylidene)acetonitrile 1a及其衍生物1b – d。在室温下,硅胶在 30 分钟内促进了从稳定中间体到1a的定量转化。最后,获得了四个化学σ键和两个具有高非对映选择性的手性碳。化合物1a可以作为一种新型的高选择性紫外可见和荧光“开启”探针,用于 Zn 2+和 Cd 2+,对质子有响应,并表现出双态发射 (DSE) 特性。