Effects of link chain length on oxidation of cyclohexylbenzene catalyzed by immobilized N-hydroxyphthalimide on crosslinked polystyrene was written by Sun, Tingting;Shan, Yuhua;Wang, Jiyuan;Chen, Shaohui;Huang, Chao. And the article was included in Shiyou Xuebao, Shiyou Jiagong in 2020.Quality Control of 1-Bromo-6-chlorohexane The following contents are mentioned in the article:
To solve the drawbacks of difficult recovery and reuse of N-hydroxyphthalimide (NHPI), the crosslinked polystyrene (CPS) immobilized NHPI (CPS-NHPI-Cn) catalysts with different link chain lengths were prepared by chem. immobilization of NHPI on the surface of CPS microsphere using different chain lengths of halogenated hydrocarbons as alkylation agents. The synthesized CPS-NHPI-Cn catalysts were characterized by XPS, FT-IR, BET and SEM, and evaluated by cyclohexylbenzene oxidation The effects of link chain length (C1-C9) in CPS-NHPI-Cn and reaction conditions on the catalytic performance were investigated. Results indicate that the link chain length affects the catalytic performance of CPS-NHPI-Cn obviously, and the catalytic activity increases with the link chain number from 1 to 6. Using CPS-NHP-C6 as catalyst, at 95°C and 1 MPa O2 partial pressure for 8 h, the cyclohexylbenzene conversion is 28.4%, with the selectivity of cyclohexanone and phenol is 90.7% and 87.6%, resp. After the CPS-NHP-C6 catalyst has been reused for 10 times, the catalytic performance is still as high as that of fresh one. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Quality Control of 1-Bromo-6-chlorohexane).
1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Quality Control of 1-Bromo-6-chlorohexane
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics