Answers are grounded in this paper and cite their sources.
A study was made of the formation of thieno[2,3‐ c ]pyridine (1) from hydrogen sulfide and 4‐vinylpyridine in a flow system at 630°. 2‐(4‐Pyridyl)ethanethiol and bis‐2‐(4‐pyridyl)ethyl sulfide were found to be likely intermediates. Based on these studies, there was devised a two‐step practical preparative method for I (optimum overall yield 58%) which consists of preliminary conversion of 4‐vinylpyridine to benzyl 2‐(4‐pyridyl)ethyl sulfide and subsequent thermolysis (at 605°) of this substance.
No takes yet. Share an insight, caveat, or question.
Klemm et al. (1969) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: