16932-45-9Relevant articles and documents
Preparation method of 2-bromo-1, 3-dimethoxybenzene
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Paragraph 0003; 0022-0033, (2020/07/02)
The invention discloses a preparation method of 2-bromo-1, 3-dimethoxybenzene. The preparation method comprises the following steps: using tetrahydrofuran as a solvent, adding m-dimethoxybenzene, stirring to dissolve, cooling to 5-10 DEG C, slowly dropwis
Decarboxylative Suzuki-Miyaura coupling of (hetero)aromatic carboxylic acids using iodine as the terminal oxidant
Quibell, Jacob M.,Duan, Guojian,Perry, Gregory J.P.,Larrosa, Igor
supporting information, p. 6445 - 6448 (2019/06/07)
A novel methodology for the decarboxylative Suzuki-Miyaura-type coupling has been established. This process uses iodine or a bromine source as both the decarboxylation mediator and the terminal oxidant, thus avoiding the need for stoichiometric amounts of transition metal salts previously required. Our new protocol allows for the construction of valuable biaryl architectures through the coupling of (hetero)aromatic carboxylic acids with arylboronic acids. The scope of this decarboxylative Suzuki reaction has been greatly diversified, allowing for previously inaccessible non-ortho-substituted aromatic acids to undergo this transformation. The procedure also benefits from low catalyst loadings and the absence of stoichiometric transition metal additives.
COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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Paragraph 0260, (2017/03/21)
When a decrease in low-grey level region (e.g., 0 to 80 grey) efficiencies of organic light emitting devices is not constant, deviation among display panels may cause color change and stain in the low luminance region. Aspects of the present disclosure ar