Organic Chemistry - Unprecedented Access of Functionalized Pyrrolo[2,1-a]isoquinolines from the Domino Reaction of Isoquinolinium Ylides and Electrophilic Benzannulated Heterocycles 

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  • Unprecedented Access of Functionalized Pyrrolo[2,1-a]isoquinolines from the Domino Reaction of Isoquinolinium Ylides and Electrophilic Benzannulated Heterocycles
Unprecedented Access of Functionalized Pyrrolo[2,1-a]isoquinolines from the Domino Reaction of Isoquinolinium Ylides and Electrophilic Benzannulated Heterocycles

Sheba Ann Babu, Rajalekshmi A. R.,   Nitha P. R., Vishnu K. Omanakuttan, Rahul P., Sunil Varughese*, Jubi John*

We have come across an unexpected domino dipolar cycloaddition-ring opening reaction between electrophilic indoles and isoquinolinium methylides for accessing functionalized pyrrolo[2,1-a]isoquinolines. The reaction was found to be general yielding the products in good yields and scalable to gram-scale. We also observed the formation of S-S bridged bis-pyrrolo[2,1-a]isoquinolines from the reaction of 3-nitro benzothiophene and isoquinolinium methylides.

Org. Biomol. Chem. 2021, 19, 1807-1817.

 

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