ORCID Profile
0000-0003-2922-0392
Current Organisation
Shandong University
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Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2MA00344A
Abstract: The design of the solid-state fluorescence sensor.
Publisher: International Union of Crystallography (IUCr)
Date: 27-08-2011
Publisher: International Union of Crystallography (IUCr)
Date: 11-08-2011
Publisher: Wiley
Date: 13-03-2020
Abstract: The most pressing challenges for light‐driven hydrogel actuators include reliance on UV light, slow response, poor mechanical properties, and limited functionalities. Now, a supramolecular design strategy is used to address these issues. Key is the use of a benzylimine‐functionalized anthracene group, which red‐shifts the absorption into the visible region and also stabilizes the supramolecular network through π–π interactions. Acid–ether hydrogen bonds are incorporated for energy dissipation under mechanical deformation and maintaining hydrophilicity of the network. This double‐crosslinked supramolecular hydrogel developed via a simple synthesis exhibits a unique combination of high strength, rapid self‐healing, and fast visible‐light‐driven shape morphing both in the wet and dry state. As all of the interactions are dynamic, the design enables the structures to be recycled and reprogrammed into different 3D objects.
Publisher: American Chemical Society (ACS)
Date: 28-11-2017
DOI: 10.1021/ACS.JNATPROD.7B00872
Abstract: A total synthesis of the marine alkaloid discoipyrrole C (3) is described. In the pivotal step, the 2,3,5-trisubstituted pyrrole 19 was treated with MoOPH in the presence of MeOH, and the resulting methoxylated 1,2-dihydro-3H-pyrrol-3-one 20 subjected to reaction with potassium carbonate in MeOH then trifluoroacetic acid and H
Publisher: International Union of Crystallography (IUCr)
Date: 30-09-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1MA00223F
Abstract: We report a macromolecular design concept to develop humidity-responsive polymers with simultaneously improved mechanical properties and 3D printability, while still displaying fast, reversible and complex shape transformations.
Publisher: American Chemical Society (ACS)
Date: 15-08-2019
DOI: 10.1021/ACS.ORGLETT.9B02084
Abstract: Oxaline, glandicoline, and meleagrin contain a unique triazaspirocyclic structure. Attracted by their biological activities, we attempted a novel strategy, mimicking a proposed biosynthetic pathway for glandicoline B in
Publisher: Wiley
Date: 05-06-2017
Abstract: The enantiomer, ent-4, of the true structure, 4, of the sorbicillinoid rezishanone C (sorbivinetone) has been synthesized from a homochiral cis-1,2-dihydrocatechol that is itself generated through the whole-cell biotransformation of toluene. These studies together with dispersion-corrected DFT calculations support the proposal that rezishanone C is an artefact of the isolation process and arises through a Diels-Alder reaction between ethyl vinyl ether and sorbicillinol (3).
Publisher: International Union of Crystallography (IUCr)
Date: 23-11-2011
Publisher: American Chemical Society (ACS)
Date: 05-01-2021
Publisher: American Chemical Society (ACS)
Date: 14-03-2011
DOI: 10.1021/JO2000644
Abstract: A concise and efficient approach to the syntheses of coumestan analogues has been developed. The underpinning strategy involves a FeCl(3)-mediated direct intramolecular oxidative annellation of 4-hydroxy-3-phenyl-2H-chromen-2-one derivatives. Utilizing this synthetic protocol, a variety of coumestan derivatives were conveniently obtained from readily available reagents.
Publisher: IEEE
Date: 28-08-2022
Publisher: American Chemical Society (ACS)
Date: 20-07-2017
Abstract: A series of enantiomerically pure bicyclo[2.2.2]octenones, including the lactone-annulated system 26, has been prepared by engaging derivatives of an enzymatically derived and homochiral cis-1,2-dihydrocatechol in inter- or intra-molecular Diels-Alder reactions. Systems such as 26 readily participate in photochemically promoted oxa-di-π-methane rearrangement or 1,3-acyl migration processes to give products such as diquinane 34 or mixtures of cyclobutanone 36 and cyclopropane 38, respectively.
Publisher: American Chemical Society (ACS)
Date: 03-04-2017
Abstract: The title natural products 2-7 have been prepared by reductive cyclization of the relevant 2-arylcyclohex-2-en-1-one (e.g. 20) to the corresponding tetrahydrocarbazole and dehydrogenation (aromatization) of this to give the target carbazole (e.g. 4). Compounds such as 20 were prepared using a palladium-catalyzed Ullmann cross-coupling reaction between the appropriate 2-iodocyclohex-2-en-1-one and o-halonitrobenzene.
Publisher: American Chemical Society (ACS)
Date: 30-03-2017
Abstract: A cross-coupling/reductive cyclization protocol has been employed in a unified approach to all four carbolines. So, for ex le, the 2-nitropyridine 8, which is readily prepared through an efficient palladium-catalyzed Ullmann cross-coupling reaction, is reductively cyclized under conventional conditions to give 6,7,8,9-tetrahydro-α-carboline that is itself readily aromatized to give α-carboline (1).
Publisher: American Chemical Society (ACS)
Date: 10-10-2011
DOI: 10.1021/JO2012187
Abstract: A variety of 2-aryl-3-arylamino-2-alkenenitriles were converted to N-arylindole-3-carbonitriles in a one-pot manner through NBS- or NCS-mediated halogenation followed by Zn(OAc)(2)-catalyzed intramolecular cyclization. It is postulated that the process involves the formation of arylnitrenium ion intermediates, which undergo the electrophilic aromatic substitution to give the cyclized N-arylindole product.
Publisher: Wiley
Date: 04-12-2017
Abstract: The title compounds of the general form 1 can be produced at large scale and in essentially enantiomerically pure form (when X≠H) through the whole cell biotransformation of the corresponding aromatic. The "dense" and varied functionality associated with these metabolites mean that they have become increasingly useful chirons for the total synthesis of a range of natural product types. This personal account details the outcomes of a nearly three-decade long c aign within our group to exploit these compounds in the synthesis of a erse range of small molecule natural product targets. The work is sub ided according to the key transformation(s) employed in each synthesis. The development of newer chirons that "complement" the utility of the cis-1,2-dihydrocatechols are also described.
Publisher: American Chemical Society (ACS)
Date: 08-12-2018
DOI: 10.1021/ACS.ORGLETT.7B03495
Abstract: Aminocyclitol 2, a recently isolated and notable antifungal agent, was prepared from homochiral γ-hydroxycyclohexenone 4, which is itself available in six steps from l-(+)-tartaric acid (3). The well-defined rigidifying effect arising from the 1,2-diacetal protecting group associated with compound 4 and its derivatives allows for high levels of regio- and stereo-chemical control in the manipulation of the cyclitol framework.
Publisher: Springer Science and Business Media LLC
Date: 2022
Publisher: IEEE
Date: 29-08-2021
No related grants have been discovered for Qiao Yan.