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Palladium-catalyzed selective C–C bond cleavage and stereoselective alkenylation between cyclopropanol and 1,3-diyne: one-step synthesis of diverse conjugated enynes

Autor: Bedadyuti Vedvyas Pati, Asit Ghosh, Komal Yadav, Shyam Kumar Banjare, Shalini Pandey, Upakarasamy Lourderaj, Ponneri C. Ravikumar

Publikováno v: Chemical Science. 13:2692-2700

The stereoselective synthesis of 1,3-enynes from 1,3-diynes is demonstrated by palladium-catalyzed selective C-C bond cleavage of cyclopropanol. Exclusive formation of mono-alkenylated adducts was achieved by eliminating the possibility of di-functio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c2f13f3e636bd0d61625947a24ea07a
https://doi.org/10.1039/d1sc04780a

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Ruthenium-Catalyzed Regioselective C(sp2)–H Activation/Annulation of N-(7-Azaindole)amides with 1,3-Diynes Using N-Amino-7-azaindole as the N,N-Bidentate Directing Group

Autor: Bedadyuti Vedvyas Pati, Prateep Singh Sagara, Ponneri Chandrababu Ravikumar, Asit Ghosh, Gopal Krushna Das Adhikari

Publikováno v: The Journal of Organic Chemistry. 86:9428-9443

The ruthenium(II)-catalyzed regioselective annulation of N-(7-azaindole)amides with 1,3-diynes has been demonstrated. Bioactive N-amino-7-azaindole has been used as a new bidentate directing group to furnish an array of 3-alkynylated isoquinolones. F

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ac0059e682666ab46a073cf83f30753
https://doi.org/10.1021/acs.joc.1c00759

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Ruthenium-Catalyzed Cross Dehydrogenative Annulation of N-(7-Azaindole)benzamides with Maleimides: One-Step Access to Highly Functionalized Pyrroloisoquinoline

Autor: Prateep Singh Sagara, Bedadyuti Vedvyas Pati, Ponneri Chandrababu Ravikumar, Asit Ghosh, Smruti Ranjan Mohanty

Publikováno v: The Journal of Organic Chemistry. 86:6551-6565

A ruthenium(II)-catalyzed cross dehydrogenative annulation of N-(7-azaindole)benzamides with maleimides has been demonstrated. Herein, we have explored the use of N-amino-7-azaindole as a new bidentate directing group for dehydrogenative [4 + 2] annu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5daf49c4c42891b189b83a1fac7f5232
https://doi.org/10.1021/acs.joc.1c00367

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Relieving the stress together: annulation of two different strained rings towards the formation of biologically significant heterocyclic scaffolds

Autor: Raghunath Dey, Asit Ghosh, Prabal Banerjee

Publikováno v: Chemical Communications. 57:5359-5373

Small carbo- and heterocycles have become versatile building blocks owing to their intrinsic ring strain and ease of synthesis. However, the traditional approaches of heterocycle synthesis involved the combination of one strained-carbocycle or hetero

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e830f0a6a7ef850bd2b234e574191df5
https://doi.org/10.1039/d1cc00998b

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Palladium-Catalyzed C-C Bond Activation and Regioselective Alkenyla-tion between Cyclopropanol and 1,3-Diyne: One-Step Synthesis of Di-verse Conjugated Enynes

Autor: Upakarasamy Lourderaj, Asit Ghosh, Bedadyuti Vedvyas Pati, Shyam Kumar Banjare, Ponneri Chandrababu Ravikumar, Komal Yadav

We report here the first example of the use of 1,3-dialkynes in C-C bond activation with any metal. The regio- and stereo-selective synthesis of 1,3-enynes from 1,3-diynes is demonstrated by the palladium-catalyzed C-C bond activation of cyclo-propan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7844cd64d5bb6f0032a831c006f91be0
https://doi.org/10.33774/chemrxiv-2021-grm27

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