Application In Synthesis of 3,6-Dibromo-9H-carbazoleIn 2021 ,《Occurrence and distribution of polyhalogenated carbazoles (PHCs) in sediments from the northern South China Sea》 appeared in Science of the Total Environment. The author of the article were Zhou, Wenxiu; Chen, Weifang; Li, Peng; Gu, Zhaoyang; Peng, Jinghe; Lin, Kunde. The article conveys some information:
Polyhalogenated carbazoles (PHCs) have been frequently detected in various environments and have gained increasing attention due to their dioxin-like toxicity. In this study, 28 surface sediments and three sediment cores were collected from the northern South China Sea (SCS) to investigate the spatial and temporal distribution trends of PHCs. The total concentrations of PHCs in the surface sediments ranged from 0.25 ng/g to 3.10 ng/g, with a median concentration of 1.50 ng/g. The composition profiles of PHCs in the surface sediments were dominated by 3,6-dichlorocarbazole (36-CCZ), 3,6-dibromocarbazole (36-BCZ), and 1,3,6,8-tetrabromocarbazole (1368-BCZ). The total organic carbon (TOC) based concentrations of 36-CCZ, 1-bromo-3,6-dichlorocarbazole, 1,3,6,8-tetrachlorocarbazole, and 1368-BCZ showed significant pos. correlation with water depth (r = 0.58-0.88, p values < 0.01). On the contrary, the TOC based concentration of 2,3,6,7-tetrachlorocarbazole displayed a significant neg. correlation with the water depth (r = -0.52, p < 0.01). However, no significant correlation was observed for 3-chlorocarbazole, 36-BCZ, and 1,3,6-tribromocarbazole (p values > 0.05). PHCs in sediment cores showed that congener profiles and concentrations of PHCs remained largely stable throughout the 1890s and 2010s. In addition, all the detected PHCs displayed a significant pos. correlation with TOC content of the sediments. These unique spatial and temporal distribution patterns suggest that both terrigenous and natural marine sources contributed the observed PHCs in sediments of the northern SCS. In the experimental materials used by the author, we found 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Application In Synthesis of 3,6-Dibromo-9H-carbazole)
3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used in the preparation of N-(2-hydroxyethyl)-3,6-dibromocarbazole.Application In Synthesis of 3,6-Dibromo-9H-carbazole
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary