Brønsted acid-catalyzed aza Diels-Alder reaction of Danishefsky's diene with aldimine generated in situ from aldehyde and amine in aqueous media
作者:Takahiko Akiyama、Jun Takaya、Hirotaka Kagoshima
DOI:10.1016/s0040-4039(99)01630-5
日期:1999.10
Three-component aza Diels-Alderreaction, starting from aldehyde, aniline, and Danishefsky's diene, took place smoothly under the influence of HBF4 in aqueous media to afford dihydro-4-pyridone derivatives in high yields.
Alkaline salt-catalyzed aza Diels–Alder reactions of Danishefsky’s diene with imines in water under neutral conditions
作者:Catherine Loncaric、Kei Manabe、Shū Kobayashi
DOI:10.1039/b300880k
日期:2003.2.20
Two- or three-component aza Diels-Alder reactions of Danishefsky'sdiene with imines or aldehydes and amines in water took place smoothly under neutral conditions in the presence of a catalytic amount of an alkaline salt such as sodium triflate to afford dihydro-4-pyridones in high yields.
Acid-Free Aza Diels−Alder Reaction of Danishefsky's Diene with Imines
作者:Yu Yuan、Xin Li、Kuiling Ding
DOI:10.1021/ol0265822
日期:2002.9.1
[reaction: see text] A highly efficient aza Diels-Alder reaction of Danishefsky'sdiene with imines was found to occur in methanol in the absence of any acids at room temperature to give corresponding 2-substituted dihydro-4-pyridone derivatives in high yields. This reaction can be also carried out in a three-component one-pot reaction manner. The reaction was found to proceed through a Mannich-type
AgOTf-Catalyzed Aza-Diels–Alder Reactions of Danishefsky's Diene with Imines in Water
作者:Catherine Loncaric、Kei Manabe、Shū Kobayashi
DOI:10.1002/adsc.200390052
日期:2003.4
Aza-Diels–Alderreactions of Danishefsky'sdiene with imines in water took place smoothly in the presence of a catalytic amount of silver triflate to afford dihydro-4-pyridones in high yields. The silver triflate-catalyzed three-component reactions starting from aldehydes, amines, and Danishefsky'sdiene were also performed efficiently. In the three-component reactions with benzaldehyde, the addition