Sakya Sen Research Group
banner
sengroup.bsky.social
Sakya Sen Research Group
@sengroup.bsky.social
Senior Principal Scientist at CSIR NCL, Pune. Main Group Chemist; IITKgP/Uni Göttingen/Uni Würzburg alumnus; Foodie, cricket and football lover.
http://academic.ncl.res.in/ss.sen
Reposted by Sakya Sen Research Group
Nucleophilic #Bismuth: diarylbismuth-anions grant access to bismuth-acyl compounds & visible-light-induced reversible insertion/extrusion of CO! Just out @natcomms.nature.com: link.springer.com/article/10.1.... Congrats to the team (including @felixgeist.bsky.social, @jordipoater.bsky.social)!
Diaryl Bismuthides and Acyl Bismuthanes Enable Visible-Light-Induced Reversible Carbon Monoxide Insertion and Extrusion - Nature Communications
Carbon monoxide (CO) is one of the simplest and most fundamental molecules that has fascinated chemists for decades. Early-on, chemists have recognized and exploited its favorable properties as a key ...
link.springer.com
November 20, 2025 at 7:52 PM
Reposted by Sakya Sen Research Group
Reversible C–H Bond Activation of Unactivated Arenes by a Nickel-Silylene Complex - pubs.acs.org/doi/10.1021/...
So proud to congratulate first author Leon Gomm for his first paper in JACS. Thanks to Hui Zhu and Stefan Grimme for the ever helpful DFT calculations. @unibonn.bsky.social
Reversible C–H Bond Activation of Unactivated Arenes by a Nickel-Silylene Complex
A nickel-silylene complex is shown to reversibly activate benzene via C–H bond activation at ambient temperature. The benzene C–H bond formally adds across the Ni–Si core to form a nickel-silyl comple...
pubs.acs.org
August 8, 2025 at 4:14 PM
This time it's magnesium! Our latest at Inorganic Chemistry reports a Mg-catalyst that reduces all amides. Kudos to Biplab for the lead with solid support from Soumya, Devaraj, Kumar, Rajesh! Grateful to CSIR_IND for funds!
#MagnesiumCatalysis
#SustainableChemistry
pubs.acs.org/doi/10.1021/...
Magnesium-Catalyzed Primary, Secondary, and Tertiary Amide Hydroboration
Catalytic hydroboration of amides is highly important because the resultant amines are commonly found in natural products, pharmaceuticals, agrochemicals, dyes, and other applications. In comparison to the conventional reduction of amides using (over)stoichiometric reductants, hydroboration of amides using magnesium compounds represents a green and sustainable approach because magnesium is both Earth abundant and environmentally benign. However, there is only one report on magnesium-catalyzed deoxygenative hydroboration of secondary and tertiary amides. Here, we describe the synthesis and structural authentication of two new magnesium compounds (1 and 2) featuring a flexible PNP ligand and the utilization of 2 as a catalyst for the pinacolborane-mediated reduction of primary, secondary, and tertiary amides to amines. The reaction scope is explored, and a mechanism is proposed based on experimental and theoretical insights.
pubs.acs.org
June 19, 2025 at 7:13 AM
This time we work on Mn (it's not Mg) when Biswajit Saha helps us! A great collaborative work on C-H borylation led by Prateeksha and duly supported by Rinu, Deboshree, Kumar.
Just published @daltontrans.rsc.org
Thanks CSIR-NCL, CSIR-NEIST
& ANRF, India for support
pubs.rsc.org/en/content/a...
Manganese(I)-catalyzed dehydrogenative borylation of terminal alkynes
Compounds containing carbon–boron bonds serve as valuable intermediates for constructing more complex molecules by transforming these bonds into other carbon–element bonds. The catalytic dehydrogenati...
pubs.rsc.org
June 17, 2025 at 12:54 PM
Sila[1]ferrocenophanes with Bulky Substituents - Published in European Journal of Inorganic Chemistry
chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...
Sila[1]ferrocenophanes with Bulky Substituents
Nucleophilic substitution via selective removal of one chlorine atom of dichlorosila[1]ferrocenophane using various reagents to yield novel sila[1]ferrocenophanes with sterically bulky groups.
chemistry-europe.onlinelibrary.wiley.com
June 12, 2025 at 1:24 PM
Are nucleophilic carbenes necessary in making imines? In our latest Organometallics paper, we show that DACs can do it too- sometimes in an unconventional way! Congrats to all authors!
Thanks CSIR-NCL and ANRF for support!
pubs.acs.org/doi/10.1021/...
Synthesis of Diamido N-Heterocyclic Imines (DAC = NH) Via Staudinger or Reductive N–N Bond Cleavage Approach
This report communicates the first examples of N-heterocyclic imines based on electrophilic diamido carbenes (DACs). While 2 is prepared by classical Staudinger synthesis, 4 is obtained via an unusua...
pubs.acs.org
June 12, 2025 at 11:34 AM
Reposted by Sakya Sen Research Group
Happy to share our recent work in #Bismuth chemistry with prof. Crispin Lichtenberg @Philipps university_Marburg
Many thanks to all the co-authors
DrAhmed Fetoh and prof. Jordi Poater #carbene #radicalchemistry
chemistry-europe.onlinelibrary.wiley.com/doi/full/10....
The Careful Combination of Bismuth Compounds and CAAC: Formal Halonium and Nitrenium Transfer via Radical Pathways
Fundamental bismuth compounds such as BiCl3 and BiBr(NMe2)2 form simple, colorful adducts with cyclic (alkyl)(amino)carbenes. They undergo facile and selective formal X+ and (NMe2)+ transfer from bis...
chemistry-europe.onlinelibrary.wiley.com
April 24, 2025 at 1:15 PM
Reposted by Sakya Sen Research Group
Happy to share our perspective on the recent development of six-membered saturated NHCs in main-group chemistry in @daltontrans.rsc.org
Many thanks to @sengroup.bsky.social

pubs.rsc.org/en/content/a...
Development of six-membered saturated cyclic diaminocarbenes in main-group chemistry
In recent years, there has been a remarkable surge in the utilization of saturated N-heterocyclic carbenes (NHCs) as ligands in main group chemistry. While the field has predominantly focused on five-...
pubs.rsc.org
April 23, 2025 at 8:36 PM
Excited to share our first paper of 2025 in Organometallics!
We describe the scission of OH and CH bond by magnesium using MLC! Great team work by vishal Sharma Rajesh gonnade, Soumya Dash, and Kumar Vanka.
Thanks CSIR-IND and csir-ncl for financial support!
pubs.acs.org/doi/10.1021/...
Magnesium–Ligand Cooperation in Breaking the O–H and C–H Bonds of Water and Diazoalkane
In our previous paper, we reported that the reaction of a tridentate nacnac ligand with a pendant picolyl group, with KHMDS and MgI2, resulted in the formation of a homoleptic hexacoordinate magnesium...
pubs.acs.org
March 20, 2025 at 12:57 PM
Congratulations to our past PhD student Milan Bisai (currently with Mike Ingleson) on being awarded the prestigious AvH postdoc fellowship.
Best wishes and looking forward to some exciting chemistry with Sjoerd Harder at Erlangen.
An old photo in my office after his PhD defence
March 18, 2025 at 5:09 PM
Deeply saddened by the news… I still remember attending his classes during my PhD in Göttingen. An inspirational person!
February 25, 2025 at 3:31 AM
Congratulations to Vishal Sharma for winning one of the best oral presentations at #ICMGSC2025. #magicalmagnesium
February 16, 2025 at 4:30 PM
PhD #8: Congrats to V.S. Ajithkumar for defending his PhD with some cool Group 14 chemistry. 7 publications (4 first-author & more to come)! Thanks Sharanappa Nembenna & K. Geetharani for evaluation and doing the honors.
Wishing Ajith a productive time in Toronto with Doug Stephan & Karin Ruhlandt
December 4, 2024 at 9:30 AM
Reposted by Sakya Sen Research Group
The @roysocchem.bsky.social annual poster competition is taking place on LinkedIn again in 2025. Join us there in March!
December 3, 2024 at 10:45 AM
Reposted by Sakya Sen Research Group
Our latest in Angewandte Chemie showing reductive coupling of an isocyanide by a germylene and its use as a HTL in quantum dot solar cell. A mix of synthesis, theory, and application! #maingroupchemistry
onlinelibrary.wiley.com/doi/10.1002/...
Germylene Mediated Reductive C−C and C−N Coupling of an Isocyanide and its Device Application
Reductive coupling of perimidine based N-heterocyclic germylene and 4-iodophenyl isocyanide afforded a highly colored and luminescent bis-spirogerma species with unprecedented simultaneous C−N and C−....
onlinelibrary.wiley.com
November 15, 2024 at 5:12 AM
Our latest in Angewandte Chemie showing reductive coupling of an isocyanide by a germylene and its use as a HTL in quantum dot solar cell. A mix of synthesis, theory, and application! #maingroupchemistry
onlinelibrary.wiley.com/doi/10.1002/...
Germylene Mediated Reductive C−C and C−N Coupling of an Isocyanide and its Device Application
Reductive coupling of perimidine based N-heterocyclic germylene and 4-iodophenyl isocyanide afforded a highly colored and luminescent bis-spirogerma species with unprecedented simultaneous C−N and C−....
onlinelibrary.wiley.com
November 15, 2024 at 5:12 AM
Wished to make diradicaloids based on perfluoronaphthalene, but a beautiful Co complex was obtained during the reduction with cobaltocene. Happy to publish it in Dalton Transactions. Have a read!
#Nheterocycliccarbene
pubs.rsc.org/en/content/a...
Unprecedented C–F bond cleavage in perfluoronaphthalene during cobaltocene reduction
The C–F bond activation of perfluoronaphthalene by 5-SIDipp led to the formation of dicationic salts with two fluorides (3·2HF2 ) or heptafluorodiborate (3·2B2F7) as counter-anions. The anion exchange...
pubs.rsc.org
November 15, 2024 at 3:43 AM