铜(I)催化的N-吲哚系环丙烯的分子内串联环化:功能化的氢化二氮杂苯并[ a ]环戊[ cd ] azulene衍生物的合成
摘要:
本文提出了Cu(I)催化的N吲哚系环丙烯的[3 + 2]分子内环加成反应。该反应始于在用Cu(I)催化剂活化环丙烯并进行Friedel-Crafts型环化反应以形成官能化的氢化二氮杂苯并[ a ]环戊[ cd ]之后,形成π-烯丙基阳离子中间体或其共振稳定的金属类化合物中间体。天青石的产量高到极好,dr值中等到良好。可以实现该环加成反应的不对称变体,从而得到具有中等ee值的所需产物。
Oxazinoindole derivatives characterized by having an amino(lower)alkyl radical attached to the 1 position of a 1H-1,4-oxazino[4,3-a]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated in a heterocyclic amine radical. The derivatives are substituted further at positions 1 and 10 and may be optionally substituted at positions 3, 4, 6, 7, 8 and 9. The oxazinoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.
Oxazinoindole derivatives useful as antidepressants
申请人:Ayerst McKenna & Harrison Ltd.
公开号:US04012511A1
公开(公告)日:1977-03-15
Oxazinoindole derivatives characterized by having an amino(lower)alkyl radical attached to the 1 position of a 1H-1,4-oxazino[4,3-a]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated in a heterocyclic amine radical. The derivatives are substituted further at positions 1 and 10 and may be optionally substituted at positions 3, 4, 6, 7, 8 and 9. The oxazinoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the use of these derivatives and compositions containing them are also disclosed.
Thiazinoindole derivatives characterized by having an amino(lower)alkyl radical attached to the 1 position of a 1H-1,4-thiazino[4,3-a]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated in a heterocyclic amine radical. The derivatives are substituted further at positions 1 and 10 and may be optionally substituted at positions 3, 4, 6, 7, 8 and 9. The thiazinoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the use of these derivatives and compositions containing them are also disclosed.
Palladium(II)-Catalyzed Intramolecular [2 + 2 + 2] Annulation of Indolyl 1,3-Diynes: Construction of Azepino-Fused Carbazoles
作者:Meng-Lian Yao、Xiao-Yuan Wang、Guang-Chao Feng、Ji-Kai Liu、Bin Wu、Jin-Ming Yang
DOI:10.1021/acs.orglett.3c01186
日期:2023.6.30
A novel palladium(II)-catalyzedintramolecular [2 + 2 + 2] annulation of indolyl 1,3-diynes is described in this contribution. A variety of azepino-fused carbazoles are obtained in moderate to excellent yields. The key to the success of this transformation is the use of a carboxylic acid as an additive. This protocol features broad functional group tolerances, easy handling in air, and 100% atom economy