Domino reaction of arylglyoxals with pyrazol-5-amines: selective access to pyrazolo-fused 1,7-naphthyridines, 1,3-diazocanes, and pyrroles.

Domino reaction of arylglyoxals with pyrazol-5-amines: selective access to pyrazolo-fused 1,7-naphthyridines, 1,3-diazocanes, and pyrroles.
复制标题

芳基乙二醛与吡唑-5-胺的多米诺反应:选择性获得吡唑并稠合的 1,7-萘啶、1,3-重氮烷和吡咯

DOI:
10.1021/jo500823z
复制
发表时间:
2014-06-06
期刊:
The Journal of organic chemistry
影响因子:
--
通讯作者:
Li G
Li G
中科院分区:
其他
文献类型:
--
作者:
Jiang B;Fan W;Sun MY;Ye Q;Wang SL;Tu SJ;Li G

文献摘要

参考文献

被引文献

相似文献

芳基乙二醛与吡唑-5-胺的新的多组分多米诺反应已经建立,提供了前所未有的吡唑稠合1,7-萘啶、1,3-重氮杂环己烷和吡咯的选择性途径(多达52个例子)。通过特殊的双[3+2+1]杂环反应,并在芳基乙醛的两个亲电中心之间直接生成C-C,区域选择性地合成了未见报道的二吡唑稠联1,7-萘啶类化合物。反常的[3+3+1+1]环化反应得到了20个新的双吡唑稠合1,3-重氮杂环化合物,而吡咯并[2,3-c]吡唑类化合物通过改变芳基乙二醛1和吡唑-5-胺2的比例1:2得到了高产率的吡咯并[2,3-c]吡唑并[2,3-c]吡唑杂环化合物。
New multicomponent domino reactions of arylglyoxals with pyrazol-5-amines have been established, providing selective access to unprecedented pyrazolo-fused 1,7-naphthyridines, 1,3-diazocanes, and pyrroles (up to 52 examples). The unreported dipyrazolo-fused 1,7-naphthyridines were regioselectively synthesized through a special double [3 + 2 + 1] heteroannulation accompanied by direct C–C formation between two electrophilic sites of arylglyoxals. The unusual [3 + 3 + 1 + 1] cyclization resulted in 20 examples of novel dipyrazolo-fused 1,3-diazocanes, whereas pyrrolo[2,3-c]pyrazoles were obtained in good yields by varying arylglyoxals 1 and pyrazol-5-amines 2 in the ratio 1:2. Mechanisms of formation of these three new types of heterocycles are also proposed.
DOI: 10.1021/jm990220r
发表时间: 1999-09-23
影响因子: 7.3
作者:
Natsugari, H;Ikeura, Y;Doi, T
通讯作者: Doi, T
DOI: 10.1021/ol302859j
发表时间: 2012-12-21
期刊: ORGANIC LETTERS
影响因子: 5.2
作者:
Lancefield, Christopher S.;Zhou, Linna;Westwood, Nicholas J.
通讯作者: Westwood, Nicholas J.
DOI: 10.1039/c1cc15913e
发表时间: 2012-01-21
期刊: Chemical communications (Cambridge, England)
影响因子: --
作者:
Jiang B;Yi MS;Shi F;Tu SJ;Pindi S;McDowell P;Li G
通讯作者: Li G
DOI: 10.1021/ja01614a023
发表时间: 1955-01-01
影响因子: 15
作者:
BAUMGARTEN, HE;KRIEGER, AL
通讯作者: KRIEGER, AL
DOI: 10.1016/j.tet.2008.08.049
发表时间: 2008-11-03
期刊: TETRAHEDRON
影响因子: 2.1
作者:
Ho, Tse-Lok;Lin, Qi-xian
通讯作者: Lin, Qi-xian