Petroporphyrins. 1. Preliminary characterization of the porphyrins of gilsonite
Petroporphyrins. 1. Preliminary characterization of the porphyrins of gilsonite
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DOI：
10.1021/ja00520a012
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发表时间：
1979-12
影响因子：
15
通讯作者：
J. Quirke;G. Eglinton;J. Maxwell
中科院分区：
文献类型：
--
作者：
J. Quirke;G. Eglinton;J. Maxwell
从犹他州温塔盆地始新世沥青中分离出8个单碳数卟啉组分。各烷基卟啉组分采用1n MR、质谱和LC进行分析。分离得到的7种卟啉化合物范围为C29 ~ C32，仅含甲基、乙基和氢取代基，不含介孔（桥）烷基。两个C29乙酰卟啉组分中的一个被明确地指定为2-乙基- 3,7,8.12,13,17,18 -七甲基卟啉。在C31 DPEP卟啉组分中证实了一个同环的存在。分离得到的两种C32 DPEP卟啉中的一种与标准脱氧茶碱红卟啉在LC上共层。光谱分析和色谱分析结果表明，卟啉化合物来源于叶绿素a。
Eight predominantly single carbon number porphyrin fractions were isolated chromatographically from a bitumen, gilsonite (Eocene, Uinta Basin, Utah). Each alkyl porphyrin fraction was analyzed by 1 N MR, mass spectrometry, and LC. The seven etioporphyrins isolated ranged from C29 to C32 and contained only methyl, ethyl, and hydrogen substituents, but no meso (bridge) alkyl groups. One of the two C29 etioporphyrin fractions was unambiguously assigned as 2-ethyl-3, 7, 8.12, 13, 17, 18-heptamethylporphine. The presence of an isocyclic ring was confirmed in the C31 DPEP porphyrin fraction. One of the two C32 DPEP porphyrins isolated cochromatographed on LC with standard deoxophylloerythroetioporphyrin. The combined spectrometric and chromatographic data indicate that the porphyrins are derived from chlorophyll a.