2206-89-5Relevant articles and documents
Applications of pH sensor using a covalent bond indicator based on containing functional group copolymer
Kang, Eun-Hee,Ham, Jin-Kyoung,Shim, Jong-Min,Lee, Jin-Kook,Kim, Mi-Ra
, p. 285/[575]-290/[580] (2006)
The purpose of this study was to immobilize copolymer that is able to covalent bonding with pH indicator. The pH sensitive polymers were synthesized with copolymers that are consisted of acryloylamino acid and chloroalkyl acrylate with MMA to get the optical fiber matrix. Fluoresceinamine indicator, containing amino group was immobilized covalently on prepared copolymers. The prepared pH sensing copolymers were measured sensitivity by UV-Visible spectroscopy. The pH-dependent value of copolymers was examined in the pH range of 2.00 ~ 12.00 HCl/NaOH solution at room temperature. As the length side chain and MMA molar ratio of the copolymers increases, the intensity decreases. Compared with imine group of copolymer-dye derivatives, amide group derivatives have a bathochromic shift on the UV-Visible spectrum.
Ti-Catalyzed Radical Alkylation of Secondary and Tertiary Alkyl Chlorides Using Michael Acceptors
Wu, Xiangyu,Hao, Wei,Ye, Ke-Yin,Jiang, Binyang,Pombar, Gisselle,Song, Zhidong,Lin, Song
supporting information, p. 14836 - 14843 (2018/11/10)
Alkyl chlorides are common functional groups in synthetic organic chemistry. However, the engagement of unactivated alkyl chlorides, especially tertiary alkyl chlorides, in transition-metal-catalyzed C-C bond formation remains challenging. Herein, we describe the development of a TiIII-catalyzed radical addition of 2° and 3° alkyl chlorides to electron-deficient alkenes. Mechanistic data are consistent with inner-sphere activation of the C-Cl bond featuring TiIII-mediated Cl atom abstraction. Evidence suggests that the active TiIII catalyst is generated from the TiIV precursor in a Lewis-acid-assisted electron transfer process.
Synthesis of acyloxyalkyl esters of thiocarbonic and dithiocarbamic acids
Mustafaev,Kulieva,Mustafaev,Kulibekova,Kakhramanova,Safarova,Novotorzhina
, p. 198 - 203 (2013/07/25)
Reactions of acyloxyalkyl chloride with alkaline salts of alkylxanthic, butyltrithiocarbonic, and diethyldithiocarbamic acids afforded a series of acyloxyalkyl esters of various nature and positions of the acyl groups in the molecule.