Reaktion #321643

ord-7f36d763806d4a5fb49ee70a364651d3

Reaktionsgleichung

OB(O)c1cc2ccccc2s1
benzo[b]thiophene-2-boronic acid
O=S(=O)(c1ccc(Br)s1)n1cccc1
N-(5-bromothiophene-2-sulfonyl)pyrrole
O=S(=O)(c1ccc(-c2cc3ccccc3s2)s1)n1cccc1
N-[5-(benzo[b]thien-2-yl)thiophene-2-sulfonyl]pyrrole
Ausbeute 68.0%

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigePurification by column chromatography

Vorschrift

N-[5-(benzo[b]thien-2-yl)thiophene-2-sulfonyl]pyrrole was prepared in the same manner as described in Example 32C from benzo[b]thiophene-2-boronic acid (426 mg, 2.39 mmol) and N-(5-bromothiophene-2-sulfonyl)pyrrole (700 mg, 2.39 mmol). Purification by column chromatography using 2% ethyl acetate/hexanes gave the pure sulfonamide in 68% yield as a brownish-red solid.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05594021uspto-grants-1997_01