Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Dan-Qian Xu"'
Publikováno v:
Organic & Biomolecular Chemistry. 21:1389-1394
The thioether-directed regioselective cycloaddition of internal alkynes with azides was enabled by the in situ generated cationic Ir species, providing modular access to complex S-containing triazoles.
Autor:
Yi-Feng Wang, Chao-Jie Wang, Qing-Zhou Feng, Jing-Jing Zhai, Suo-Suo Qi, Ai-Guo Zhong, Ming-Ming Chu, Dan-Qian Xu
Publikováno v:
Chemical Communications. 58:6653-6656
The first example of transition metal catalyzed asymmetric transformations of the in situ generated p-QMs has been developed, avoiding using pre-synthesized p-QMs requiring bulky 2,6-substitutions.
Autor:
Yu Wu, Feng-Wei Wu, Kun Zhou, Yiming Li, Lei Chen, Shuang Wang, Zhen-Yuan Xu, Shao-Jie Lou, Dan-Qian Xu
Publikováno v:
Chemical Communications. 58:6280-6283
A rapid construction of 9-arylfluorenes and spirobifluorenes was developed through the tandem Pd-catalysed C–H arylation/demaminative annulation of 1,1-diarylmethylamines with aromatic iodides.
Autor:
Kai-Xiang Feng, Qiao-Yu Shen, Xiao-Hua Du, Cheng-Ke Tang, Dan-Qian Xu, Ai-Bao Xia, Li-Sha Huang, Zhan-Yu Zhou, Xing Zhang
Publikováno v:
Organic Letters. 23:6750-6755
The catalytic diastereo- and enantioselective syntheses of C2-symmetric axially chiral 1,4-dicarbonyl derivatives with 2,3-quaternary stereocenters were achieved by utilizing an organo-/iodine binary catalytic strategy. The reactions proceeded well u
Autor:
Qiu-Zi Wu, Zhen-Yuan Xu, Yang-Jie Mao, Hong-Yan Hao, Kun Zhou, Jin Wu, Lei Chen, Shuang Wang, Dan-Qian Xu, Shao-Jie Lou
Publikováno v:
ACS Sustainable Chemistry & Engineering. 9:4433-4439
The aromatic C–H bond etherification with alcohols is one of the most atom-efficient ways to construct aryl ethers. However, it often requires a large excess of alcohols as etherification reagents,...
Autor:
Feng-Wei Wu, Yang-Jie Mao, Jun Pu, Huan-Le Li, Peng Ye, Zhen-Yuan Xu, Shao-Jie Lou, Dan-Qian Xu
Publikováno v:
Organicbiomolecular chemistry. 20(20)
We describe here a Ni-catalysed deamidative fluorination of diverse amides with electrophilic fluorinating reagents. Different types of amides including aromatic amides and olefinic amides were well compatible, affording the corresponding acyl fluori
Publikováno v:
Organic & Biomolecular Chemistry. 19:6588-6592
Using visible light as a driving force and molecular oxygen as a green oxidant, we developed bis(oxazoline)-Ni(acac)2 catalyzed asymmetric α-hydroxylation of β-keto esters under low photosensitizer loading, and the protocol enabled an efficient tra
Autor:
Yang-Jie Mao, Shuang Wang, Dan-Qian Xu, Qiu-Zi Wu, Zhen-Yuan Xu, Lei Chen, Kun Zhou, Shao-Jie Lou
Publikováno v:
Chemical Communications. 57:4544-4547
The Pd-cataylsed direct ortho-C(sp2)–H fluorination of aromatic ketones has been developed for the first time. The reaction features good regioselectivity and simple operations, constituting an alternative shortcut to access fluorinated ketones. A
Publikováno v:
New Journal of Chemistry. 45:15200-15204
[Cp*IrCl2]2 with a phosphine-free ligand α,α,α-terpyridine shows high catalytic performance in chemodivergent synthesis of α-alkylated arylacetonitriles in the presence of K2CO3 and α-alkylated acetamides in the presence of tBuOK, respectively.
Autor:
Dan-Qian Xu, Xing Zhang, Zhen Yuan Xu, Zhan-Yu Zhou, Zhong Yang Xu, Qiao-Yu Shen, Li Sha Huang, Ai-Bao Xia
Publikováno v:
Chemical Communications. 57:6424-6427
A new and efficient strategy for ring-opening reactions of nitrocyclopropanes is developed for the first time for the divergent synthesis of enynes and enesters via in situ generated highly reactive electron-deficient intermediate allenes. Controllab