27426-98-8Relevant academic research and scientific papers
Product, Radical Intermediates, and Hydrogen Atom Production in the Thermal Decomposition of 1,2-Dihydronaphthalene
Franz, James A.,Camaioni, Donald M.,Beishline, Robert R.,Dalling, Don K.
, p. 3563 - 3570 (2007/10/02)
The thermal decomposition of 1,2-dihydronaphthalene (DHN) at 300 deg C produces tetralin, naphthalene, hydrogen and five C20 hydrocarbon products (1-5).The isolation of compounds 1-5 from the thermal decomposition of 1,2-dihydronaphthalene-4-d revealed compounds 1 and 2 to be formed by the addition of 2-hydronaphtyl (2HN) to DHN followed by intramolecular cyclization and hydrogen abstraction.Compound 3 was formed by addition of 1-tetralyl radical to DHN followed by hydrogen abstraction, and compounds 4 and 5 were formed by a sequence involving initial addition of 2-tetralyl radical to dihydronaphthalene.The thermal decomposition of DHN at 400-450 deg C leads to the formation of a hydrogen atom which participates in subsequent hydrocracking reactions of available substituted aromatic structures.
COAL LIQUEFACTION- ENTRAPMENT OF BITETRALYLS AND OTHER PRODUCTS FROM TETRALIN
Vlieger, J. J. de,Leeuw, J. W. de,Kieboom, A. P. G.,Bekkum, H. van
, p. 203 - 204 (2007/10/02)
Small scale coal liquefaction experiments are often carried out with tetralin as a model hydrogen donating solvent.Tetralin was thought for a long time to be selectively converted into naphthalene.Recently, however, we have found substantial cracking and isomerization of tetralin under common coal liquefaction conditions, in particular at prolonged reaction times.The present paper describes further studies of the behaviour of tetralin during coal liquefaction at 400 deg C, whereby special attention is given to the formation of bitetralyls.Entrapment of these relatively low-volatile compounds strongly influences data obtained for the coal derived product.This means that the common procedures used to separate coal product and donating solvent are highly insufficient.The structure of the entrapped dimer tatralin compounds has been determined and the mechanism of dimerization is discussed.
