Supporting Information
Isolation and Identification of Two Novel Condensed Aromatic Lactones
from Zhundong Subbituminous Coal
Xing-Shun Cong,†,‡ Zhi-Min Zong,*,† Min Li,§ Yin Zhou,† Shi-Qiu Gao,‖ and Xian-Yong Wei†
† Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining
& Technology, Xuzhou 221116, Jiangsu, China
‡ Department of Chemistry, Zaozhuang University, Zaozhuang 277160, Shandong, China
§ State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, Shandong,
China
‖ State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of
Sciences, Beijing 100190, China
* Corresponding author. Tel.: +86 516 83885951. E-mail: zong_******@ (Z. M. Zong)
Nomenclature
APCI = atmosphere pressure chemical ionization
ASAP/TOF-MS = atmospheric solids analysis probe/time-of-flight mass spectrometry
CA = condensed arene
CAL = condensed aromatic lactone
CC = column chromatography
CDS = carbon disulfide
COSY = correlation spectroscopy
daf = dry and ash-free basis
E1 to E97 = IMCDSAMS-extractable fraction obtained from the 1st to the 97th extraction,
respectively
EM (EM1 to EM5) = mixed IMCDSAMS-extractable fraction (., EM1 = mixture of E1 to E4, cf.
Figure SI1)
ES1 (ES1-1 to ES1-5) = PE-soluble sub-fraction obtained from EM
1
ES2 (ES2-1 to ES2-5) = CDS-soluble and PE-insoluble sub-fraction obtained from EM
ES3 (ES3-1 to ES3-5) = methanol soluble and CDS-insoluble sub-fraction obtained from EM
ES4 (ES4-1 to ES4-5) = acetone soluble and methanol insoluble sub-fraction obtained from EM
ES5 (ES5-1 to ES5-5) = IMCDSAMS soluble and acetone insoluble sub-fraction obtained from EM
ES6 (ES6-1 to ES6-5) = t
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