Das U - Search Results

1

Reaction of 4-(Alkynyloxy)cyclohexa-2,5-dienones with Dimethyl Sulfoxide: A Catalyst-Free Formation of 6/5/3-Fused Tricyclic Enones.

Rai A, Das U. Rai A, et al. Among authors: das u. J Org Chem. 2025 Jan 10;90(1):653-657. doi: 10.1021/acs.joc.4c02553. Epub 2024 Dec 23. J Org Chem. 2025. PMID: 39711318

2

Radical Cascade Cyclization of Unactivated Alkene-Tethered Indoles with Aryldiazonium Salt and Sodium Metabisulfite to Access Azo- and Sulfonylated-2,3-Dihyro-1H-pyrrolo[1,2-a]indoles.

Kumar P, Rai A, Kumar M, Rama Krishna G, Das U. Kumar P, et al. Among authors: das u. J Org Chem. 2023 Jul 7;88(13):9123-9129. doi: 10.1021/acs.joc.3c00759. Epub 2023 Jun 27. J Org Chem. 2023. PMID: 37370228

3

Rongalite as a C1 Source: Sulfonylmethylation of Indoles with Aryl/Alkyl Hydrazides and Sulfinates.

Kale SB, Patil TA, Das U. Kale SB, et al. Among authors: das u. J Org Chem. 2024 Aug 16;89(16):11347-11352. doi: 10.1021/acs.joc.4c01012. Epub 2024 Jul 29. J Org Chem. 2024. PMID: 39072680

4

α-Angelica lactone catalyzed oxidation of benzylic sp³ C-H bonds of isochromans and phthalans.

Thatikonda T, Deepake SK, Kumar P, Das U. Thatikonda T, et al. Among authors: das u. Org Biomol Chem. 2020 Jun 3;18(21):4046-4050. doi: 10.1039/d0ob00729c. Org Biomol Chem. 2020. PMID: 32427256

5

α-Angelica Lactone in a New Role: Facile Access to N-Aryl Tetrahydroisoquinolinones and Isoindolinones via Organocatalytic α-CH₂ Oxygenation.

Thatikonda T, Deepake SK, Das U. Thatikonda T, et al. Among authors: das u. Org Lett. 2019 Apr 19;21(8):2532-2535. doi: 10.1021/acs.orglett.9b00224. Epub 2019 Apr 2. Org Lett. 2019. PMID: 30939020

6

1,6-Conjugate-Addition-Induced [2 + 1] Annulation of para-Quinone Methides and Pyrazolones: Synthesis of Bis-Spiro Compounds with Contiguous Quaternary Spiro-Centers.

Kale SB, Jori PK, Thatikonda T, Gonnade RG, Das U. Kale SB, et al. Among authors: das u. Org Lett. 2019 Oct 4;21(19):7736-7740. doi: 10.1021/acs.orglett.9b02641. Epub 2019 Sep 23. Org Lett. 2019. PMID: 31544462

7

Expanding the Scope of Primary Amine Catalysis: Stereoselective Synthesis of Indanedione-Fused 2,6-Disubstituted trans-Spirocyclohexanones.

Madhusudhan Reddy G, Ko CT, Hsieh KH, Lee CJ, Das U, Lin W. Madhusudhan Reddy G, et al. Among authors: das u. J Org Chem. 2016 Mar 18;81(6):2420-31. doi: 10.1021/acs.joc.5b02921. Epub 2016 Mar 1. J Org Chem. 2016. PMID: 26907160

8

Chemoselective intramolecular Wittig reactions for the synthesis of oxazoles and benzofurans.

Fan YS, Das U, Hsiao MY, Liu MH, Lin W. Fan YS, et al. Among authors: das u. J Org Chem. 2014 Dec 5;79(23):11567-82. doi: 10.1021/jo502232q. Epub 2014 Nov 24. J Org Chem. 2014. PMID: 25405811

9

Organocatalytic enantioselective direct vinylogous Michael addition of α,β-unsaturated γ-butyrolactam to β-acyl acrylates and 1,2-diacylethylenes.

Chen YR, Das U, Liu MH, Lin W. Chen YR, et al. Among authors: das u. J Org Chem. 2015 Feb 6;80(3):1985-92. doi: 10.1021/jo5027047. Epub 2015 Jan 16. J Org Chem. 2015. PMID: 25562697

10

Rongalite as a Sulfone Source: Sulfonylation of para-Quinone Methides and Alkyl/allyl Halides.

Kale SB, Jori PK, Das U. Kale SB, et al. Among authors: das u. Chem Asian J. 2022 Aug 15;17(16):e202200408. doi: 10.1002/asia.202200408. Epub 2022 Jun 15. Chem Asian J. 2022. PMID: 35644918

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