116026-89-2Relevant academic research and scientific papers
Thermal Cycloadditions of 1,2-Dihydropentalene
Meier, Herbert,Pauli, Alfred,Kolshorn, Heinz
, p. 101 - 104 (2007/10/02)
1,2-Dihydropentalene (1) is a cross-conjugated 6?-electron system, that can act in thermal cycloaddition processes as a 2?, 4?, or 6? component.The addition reactions with tetraphenylcyclopentadienone (1 + 2 --> 3), N-phenylmaleimide (1 + 4 --> 5) and tropone (1 + 6 --> 8 and 10, respectively) are described.On the basis of MNDO calculations peri-, regio-, and stereoselectivity are discussed by regarding primary and secondary orbital interactions. - Keywords: Cycloadditions / 1,2-Dihydropentalene
