392-14-3Relevant academic research and scientific papers
Cobalt(II)-catalyzed regioselective C-H halogenation of anilides
Li, Ze-lin,Sun, Kang-kang,Cai, Chun
, p. 5433 - 5440 (2018)
A cobalt-catalyzed regioselective C-H halogenation methodology is reported herein. The highlight of this work is the highly selective C-H functionalization of anilides, which results in high-yielding, versatile, and practical halogenated products. Thereby, brominations, chlorinations and iodinations of many electron-rich and electron-deficient anilides were achieved in a highly selective fashion. Mechanistic studies with respect to the pathway of the reaction are also described.
NEAR-INFRARED-ABSORBING DYE, OPTICAL FILTER, AND IMAGING DEVICE
-
Paragraph 0259-0261, (2019/01/04)
Provided is a near-infrared-absorbing dye increasing a visible light transmittance and having a near-infrared blocking characteristic. The near-infrared-absorbing dye has an absorption characteristic measured by dissolving the dye in dichloromethane satisfying the following requirements. ?In an absorption spectrum at a wavelength of 400 to 800 nm, there is a maximum absorption wavelength λmax in a wavelength region of 670 nm or more. ?The following relational expression is established between a maximum absorption constant εA with respect to light with a wavelength of 430 to 550 nm and a maximum absorption constant εB with respect to light with a wavelength of 670 nm or more, where εB/εA≥65. ?In a spectral transmittance curve, an average transmittance of light with a wavelength of 430 to 460 nm is 94.0% or more when a transmittance at the maximum absorption wavelength λmax is set to 1%.
