A highly efficient one-pot reaction of 2-(gem-dibromovinyl)phenols(thiophenols) with K4Fe(CN)6 to 2-cyanobenzofurans(thiophenes)
作者:Wei Zhou、Wei Chen、Lei Wang
DOI:10.1039/c2ob25356a
日期:——
2-Cyanobenzofurans and 2-cyanobenzothiophenes were prepared through an efficient one-pot Ullmann-reaction/cyanation reaction. In the presence of CuI/Na2CO3–Pd(OAc)2/PPh3 in DMF, the reaction of 2-(gem-dibromovinyl)phenols and 2-(gem-dibromovinyl)thiophenols with K4Fe(CN)6, as non-toxic and user-friendly cyanating reagent, proceeded smoothly to generate the corresponding 2-cyanobenzofurans and 2-cyanobenzothiophenes
通过有效的一锅Ullmann反应/氰化反应制备2-氰基苯并呋喃和2-氰基苯并噻吩。在DMF中CuI / Na 2 CO 3 -Pd(OAc)2 / PPh 3的存在下,2-(宝石-二溴乙烯基)苯酚和2-(宝石-二溴乙烯基)苯硫酚与K 4 Fe(CN)6的反应作为无毒且对用户友好的氰化试剂,该试剂可顺利进行,以高收率生成相应的2-氰基苯并呋喃和2-氰基苯并噻吩。
RIFFAUD, J. -P.;DUPONT, C.;RENE, L.;ROYER, R., EUR. J. MED. CHEM.-CHIM. THER., 1982, 17, N 6, 577-580
作者:RIFFAUD, J. -P.、DUPONT, C.、RENE, L.、ROYER, R.
DOI:——
日期:——
A Straightforward Synthesis of 1,2-Dihydronaphtho[2,1-b]furans from 2-Naphthols
作者:Axelle Arrault
DOI:10.1055/s-1999-3536
日期:1999.7
Riffaud; Dupont; Rene, European Journal of Medicinal Chemistry, 1982, vol. 17, # 6, p. 577 - 581