21987-62-2Relevant articles and documents
Two protocols for the conversion of biphenol to binaphthol: Synthesis of diospyrol
Thasana, Nopporn,Pisutjaroenpong, Somchai,Ruchirawat, Somsak
, p. 1080 - 1084 (2006)
The application of directed orthometallation (DoM), Fries rearrangement and transmetallation followed by allylation and cyclization is reported for the conversion of biphenol to binaphthol as a means for the synthesis of diospyrol. Furthermore, the same t
Antenna biphenols: Development of extended wavelength chiroptical reporters
Bentley, Keith W.,Joyce, Leo A.,Sherer, Edward C.,Sheng, Huaming,Wolf, Christian,Welch, Christopher J.
, p. 1185 - 1191 (2016)
Molecular hosts capable of chiroptical sensing of complexed guest molecules offer an attractive alternative to conventional methods for the analysis of the absolute configuration and enantiopurity. Sensors based on the Pfeiffer effect rely on complexation
Relay Catalysis to Synthesize β-Substituted Enones: Organocatalytic Substitution of Vinylogous Esters and Amides with Organoboronates
Sundstrom, Sasha,Nguyen, Thien S.,May, Jeremy A.
supporting information, p. 1355 - 1359 (2020/02/13)
Organocatalysis was shown to facilitate conjugate additions to vinylogous esters and amides for the first time. Subsequent elimination of a β-alcohol or amine provided π-conjugated β-substituted enones. Remarkably, nucleophile addition to the electron-rich vinylogous substrates is more rapid than classical enones, forming monosubstituted products. A doubly organocatalytic (organic diol and methyl aniline) conjugate addition synthesized the products directly from alkynyl ketones. Both of these catalytic transformations are orthogonal to transition metal catalysis, allowing for good yields, easily accessible or commercially available reagents, high selectivity, reagent recovery and recyclability, facile scalability, and exceptional functional group tolerance.
Flexible Zirconium MOFs as Bromine-Nanocontainers for Bromination Reactions under Ambient Conditions
Pang, Jiandong,Yuan, Shuai,Du, Dongying,Lollar, Christina,Zhang, Liangliang,Wu, Mingyan,Yuan, Daqiang,Zhou, Hong-Cai,Hong, Maochun
supporting information, p. 14622 - 14626 (2017/10/23)
A series of flexible MOFs (PCN-605, PCN-606, and PCN-700) are synthesized and applied to reversible bromine encapsulation and release. The chemical stability of these Zr-MOFs ensures the framework's integrity during the bromine adsorption, while the framework's flexibility allows for structural adaptation upon bromine uptake to afford stronger host–guest interactions and therefore higher bromine adsorption capacities. The flexible MOFs act as bromine-nanocontainers which elongate the storage time of volatile halides under ambient conditions. Furthermore, the bromine pre-adsorbed flexible MOFs can be used as generic bromine sources for bromination reactions giving improved yields and selectivities under ambient conditions when compared with liquid bromine.