Browsing by Author "Mandal, Debdeep"

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    Activation of aromatic C-F bonds by a N‐heterocyclic olefin (NHO)
    (2020) Mandal, Debdeep; Chandra, Shubhadeep; Neuman, Nicolás I.; Mahata, Alok; Sarkar, Arighna; Kundu, Abhinanda; Anga, Srinivas; Rawat, Hemant; Schulzke, Carola; Mote, Kaustubh R.; Sarkar, Biprajit; Chandrasekhar, Vadapalli; Jana, Anukul
    A N‐heterocyclic olefin (NHO), a terminal alkene selectively activates aromatic C-F bonds without the need of any additional catalyst. As a result, a straightforward methodology was developed for the formation of different fluoroaryl‐substituted alkenes in which the central carbon-carbon double bond is in a twisted geometry.
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    Facile one‐pot assembly of push-pull imines by a selective C-F substitution process in aryl fluorides
    (2020) Anga, Srinivas; Chandra, Shubhadeep; Sarkar, Pallavi; Das, Shubhajit; Mandal, Debdeep; Kundu, Abhinanda; Rawat, Hemant; Schulzke, Carola; Sarkar, Biprajit; Pati, Swapan K.; Chandrasekhar, Vadapalli; Jana, Anukul
    Herein, we report the synthesis of a series of push–pull imines by considering cyclic diamino substituent at the C‐centre and fluoroaryl substituent at the N‐centre. This has been achieved by a selective aromatic nucleophilic substitution of different fluoroarenes by N‐H‐substituted N‐heterocyclic imines (NHIs) at ambient conditions without any additional reagent. Solid‐state molecular structure analysis reveals the elongation of the central C-N bond of the imine functionality, which is consistent with the push–pull nature of these imines. The push-pull nature of these imines is further validated by computational studies.