- Synthesis of (±)-3,3′-diphenyl-2,2′-binaphthol via different routes using Pd and Ni as catalyst respectively
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3,3′-Biphenyl-2,2′-binaphthols (BINOLs) are precursors of phosphoric acids that are widely used as ligands and catalysts in organic reactions. In this report, two routes for the synthesis of (±)-3,3′-diphenyl BINOLs via (±)-3,3′ bis-halogenated BINOLs int
- Fu, Zhengjiang,Cao, Xihan,Hao, Guangguo,Shi, Quanqing,Cai, Hu
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p. 831 - 836
(2020/09/09)
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- Photocatalyzed E→Z Contra-thermodynamic Isomerization of Vinyl Boronates with Binaphthol
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The photocatalytic contra-thermodynamic E→Z isomerization of vinyl boronates by using a binaphthol catalyst is disclosed. The reaction, based on the transient formation of a suitable chromophore with a BINOL derivative as the catalyst, allowed geometrical isomerization in good-to-excellent Z/E ratio and excellent-to-quantitative yields. The mechanism of this E→Z contra-thermodynamic isomerization was studied, and the formation of a transient chromophore species is suggested.
- Brégent, Thibaud,Bouillon, Jean-Philippe,Poisson, Thomas
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p. 13966 - 13970
(2021/08/25)
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- Synthesis, properties, and structures of functionalized peri -xanthenoxanthene
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Three types of alkylated peri-xanthenoxanthene (PXX) have been synthesized employing efficient synthetic routes. These heteroaromatic compounds exhibited different electronic and crystal structures according to UV-vis spectra, electrochemical measurements, and X-ray structural analyses. Among them, 1,7-DOPXX has been demonstrated as an active material for organic field-effect transistors with promising mobility and a high on/off ratio simultaneously.
- Lv, Na,Xie, Meilan,Gu, Weibing,Ruan, Huanyang,Qiu, Song,Zhou, Chunshan,Cui, Zheng
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p. 2382 - 2385
(2013/07/04)
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- Asymmetric allylboration of aldehydes and ketones using 3,3′-disubstitutedbinaphthol-modified boronates
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Allylboronates derived from 3,3′-disubstituted 2,2′-binaphthols react with aldehydes and ketones to give the expected allylated products with up to >99:1 er. Highest selectivities were observed for aromatic ketones. The bis(trifluoromethyl) derivative is particularly outstanding in terms of reactivity, selectivity, and robustness.
- Wu, T. Robert,Shen, Lixin,Chong, J. Michael
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p. 2701 - 2704
(2007/10/03)
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