The reaction of pyrrole with nitroolefins bearing phenyl,
tolyl, 4-methoxyphenyl, 4-chloroophenyl and, 24-dichlorophenyl 2(a-d) and 2h afforded major region-isomer 2-substituted pyrrole 8(a-d) and 8h (81%, 50%, 84%, 65%, and 90%) with some minor region-isomer 2,6-disubstituted pyrrole 9(a-d) and 9h (13%, 21%, 13%, 11%, and 9%) in 50 h, 24 h, 44 h, 20 h, and 44 h, respectively (Table 3, entries 1-4, 8).