Tetrahedron Letters

Formation of 1-chlorobenzocyclobutene, anthracene or benzofuran by flash vacuum pyrolysis

A Hussain, J Parrick

Index: Hussain, Amjad; Parrick, John Tetrahedron Letters, 1983 , vol. 24, # 6 p. 609 - 612

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Citation Number: 8

Abstract

The apparatus consisted of a quartz tube (55 cm long, 17 mm id) packed with quartz rings for 30 cm of its length. The packed volume was heated in a furnace at the quoted temperatures. The sample, contained in a flask connected to one end of the quartz tube, was vapourised by a secondary furnace into the reaction zone. The pressure was 0.1 Torr in each case and the pyrolysate was collected in traps cooled with liquid N 2 .