344863-68-9Relevant articles and documents
Electrocyclic Aromatic Substitution by the Diazo Group. Part 4. Periselectivity Studies on the Cyclisation of 1-Thienyl-3-diazoalkenes: a Route to 3H-Thienodiazepines
Miller, Thomas K,Sharp, John T
, p. 223 - 228 (2007/10/02)
In the cyclisation reactions of the 1-thienyl-3-diazoalkenes (19) and (23) the thiophene ring is more reactive to 1,7 (8?-electron) electrocyclic substitution that the analogous arene ring in the 1-phenyl-3-diazoalkene (5).The 3,3-di-2-thienyl-3H-pyrazole
