2016
DOI: 10.1039/c6cc04554e
|View full text |Cite
|
Sign up to set email alerts
|

Synthesis of 2-BMIDA 6,5-bicyclic heterocycles by Cu(i)/Pd(0)/Cu(ii) cascade catalysis of 2-iodoaniline/phenols

Abstract: A one-pot cascade reaction for the synthesis of 2-BMIDA 6,5-bicyclic heterocycles has been developed using Cu(i)/Pd(0)/Cu(ii) catalysis. 2-Iodoanilines and phenols undergo a Cu(i)/Pd(0)-catalyzed Sonogashira reaction with ethynyl BMIDA followed by in situ Cu(ii)-catalyzed 5-endo-dig cyclization to generate heterocyclic scaffolds with a BMIDA functional group in the 2-position. The method provides efficient access to borylated indoles, benzofurans, and aza-derivatives, which can be difficult to access through a… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1

Citation Types

0
13
0

Year Published

2016
2016
2020
2020

Publication Types

Select...
10

Relationship

0
10

Authors

Journals

citations
Cited by 26 publications
(13 citation statements)
references
References 51 publications
0
13
0
Order By: Relevance
“…158 Watson has also developed a synthesis of 2-borylated indoles/benzofurans involving a palladium catalyzed cascade reaction with ethynyl BMIDA and 2-iodoanilines. 159 Similarly, borylated indolenes and benzofurans have been synthesized through gold-catalyzed intramolecular cyclizations onto alkynes. 160 These reactions are expanding the collection of MIDA boronate building blocks available for small molecule construction, and hundreds of MIDA boronates are already commercially available.…”
Section: Advances Towards a General Platform For Iterative Small Molementioning
confidence: 99%
“…158 Watson has also developed a synthesis of 2-borylated indoles/benzofurans involving a palladium catalyzed cascade reaction with ethynyl BMIDA and 2-iodoanilines. 159 Similarly, borylated indolenes and benzofurans have been synthesized through gold-catalyzed intramolecular cyclizations onto alkynes. 160 These reactions are expanding the collection of MIDA boronate building blocks available for small molecule construction, and hundreds of MIDA boronates are already commercially available.…”
Section: Advances Towards a General Platform For Iterative Small Molementioning
confidence: 99%
“…Specifically, employing ortho -amino ( 5 ) or ortho -hydroxyaryl iodides ( 6 ) in the Sonogashira process generated an alkyne intermediate that, upon increasing the reaction temperature from 30 °C to 60 °C, could undergo 5- endo -dig cyclisation to forge functionalised and pharmaceutically relevant indole, benzofuran, and aza-indole scaffolds in a single operation ( 7a – f ) [4852]. …”
Section: Resultsmentioning
confidence: 99%
“…This complexation facilitates the addition of nitrogen to the triple bond. The synthesis of regioisomeric 2-indolylboronates is also feasible [110], although a procedure starting from 2-iodoanilines and MIDAB-acetylene under typical Miyaura borylation conditions would have to be used.…”
Section: Synthetic Approaches To Indolylboronic Acidsmentioning
confidence: 99%