3篇
您的检索式：作者名="Yunkui Liu"
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| 1 | Temperature-controlled selectivity toward - or -sigmatropic rearrangement: eegioselective synthesis of substituted 3, 4-dihydrocoumarins显示文摘 | Liu Yunkui | 2009 | Synlett2009，18，： | 1 |
| 2 | Azetidine synthesis enabled by photo-induced copper catalysis via [3+1] radical cascade cyclization显示文摘Azetidines are an important type of saturated,highly strained,fourmembered,nitrogen-containing heterocyclic compound.These compounds serve as important raw materials,intermediates,and catalysts in organic synthesis,as well as important active units in amino acids,alkaloids,and pharmaceutically active compounds.Thus,the development of an efficient and concise method to construct azetidines is of great significance in multiple disciplines.In this work,we reported on the photo-induced copper-catalyzed radical annulation of aliphatic amines with alkynes to produce azetidines. | Jianye Li Lu Yu Yun Peng Bin Chen Rui Guo Xiaodong Ma Xiao-Song Xue Yunkui Liu Guozhu Zhang | 2022 | The Innovation2022，3，3： | 0 |
| 3 | The protective effect of cyclodextrin on the color quality and stability of Cabernet Sauvignon red wine显示文摘The impact of cyclodextrins(CDs)on wine quality and stability remains largely unknown.This study systematically assessed the protective effect of the post-fermentation addition of CDs on color stability of red wine from the viewpoints of color characteristics,copigmentation and phenolic profiles.The grey relational analysis(GRA)and principal component analysis(PCA)methods were employed to dissect the key effective determinants related to color quality.The addition of CDs induced a significant hyperchromic effect of 8.19-25.40%,a significant bathochromic effect and an enhancement of the color intensity.Furthermore,the evolution of anthocyanin forms and the content of monomeric anthocyanins revealed that β-CD is a superior favorable cofactor during wine aging,but for long-term aging,2-HP-β-CD and 2-HP-γ-CD are more beneficial in promoting the formation of polymerized anthocyanins and color stability.This work provides an important reference for the use of CDs to enhance the color quality and stability of red wines. | Caiyun Liu Lulu Wu Shuyue Fan Yongsheng Tao Yunkui Li | 2024 | Journal of Integrative Agriculture2024，23，1： | 0 |
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