Enrichment and Identification of Arylhopanes from Shengli Lignite

Autor:	Zhe-Hao Wei, Xing-Shun Cong, Yan Li, Xing Fan, Xian-Yong Wei, Zhi-Min Zong, Yin Zhou, Yun-Peng Zhao, Min Li
Rok vydání:	2014
Předmět:	Fuel Technology Bacteriohopanetetrol Chromatography Chemistry General Chemical Engineering Side chain Energy Engineering and Power Technology Organic chemistry Gas chromatography Mass spectrometry Hopanoids
Zdroj:	Energy & Fuels. 28:6745-6748
ISSN:	1520-5029 0887-0624
DOI:	10.1021/ef501105n
Popis:	Four arylhopanes, i.e., 22-phenyl-30-norhopane, 22-(o-tolyl)-30-norhopane, 30-(5-methylthien-2-yl)hopane, and 30-(thien-2-ylmethyl)hopane, were enriched from Shengli lignite, and their structures were tentatively identified by gas chromatography/mass spectrometry. Phenylhopanes were unreported before and thienylhopanes were rarely detected in coals. The nearly equal relative contents of 22-phenyl-30-norhopane and 22-(o-tolyl)-30-norhopane suggest that a hopanoid precursor with a longer side chain compared to bacteriohopanetetrol should exist in nature. A novel type of cyclization reaction (cyclized at C30) of hopanoid polyols was proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b78860441454a28c74e5a5872a466f67 https://doi.org/10.1021/ef501105n Zobrazit plný text záznamu