Tetrahedron Letters p. 1427 - 1430 (1997)
Update date:2022-07-29
Topics:
Fujii, Hiroshi
Yoshimura, Tetsuhiko
Kamada, Hitoshi
The condensation of asymmetric β-diketones with α-oximinoacetoacetate esters affords pyrroles regioselectively. The mechanism of the regioselectivity is studied using 13C-NMR spectroscopy. Pyrrole having a neopentyl group at the 4-position is synthesized by the method, and further converted to a steric hindered porphyrin in good yield.
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