Writhabrata Sarkar

Postdoctoral Researcher @UMich || PhD @csir_iicb || Alumnus @JadavpurU #Synthetic_Organic_Inorganic_Chemistry
#Organometallics #Catalysis #Football #Mountains

[Shantanu Nandi @Shantanu_JUchem]

For your kind reference, I am attaching the emails. Please revert back and help me with your guidance. @PLinIndia @PolandMFA @IndianDiplomacy @MEAIndia

[Shantanu Nandi @Shantanu_JUchem]

Applying for a Polish National (D) Researcher visa from India. To surprise, there is NO active VFS center under the New Delhi jurisdiction = NO official way to book appointment.

Repeated emails and calling to embassy during designated hours- NO response.
@PLinIndia @PolandMFA

[Dr. Koushik Naskar @koushik_naskar_]

📌Our recent publication was selected as a cover of Organic Letters @JOC_OL "Rapid Access to Spiro[4.6]-(di)benzodiazepine Indenes: Regioselective Rh(III)-Catalyzed Cascade C–H Activation/Spiroannulation" Org. Lett. 2025, 27, 35, 9619-9624. Cheers to the whole team @DebIndubhusan

[Hayoung Song @HSong_chem]

Excited to share that our work on the ammonia activation using an intramolecular cAAC-borane pair is now accepted as a research article in @InorgChem! Big thanks to the @SzymczakLab

https://t.co/aYfdMjtnR4

[Indubhusan Deb’s Research Group@CSIR-IICB @DebIndubhusan]

Har Ghar Tiranga.
On this 79th Independence Day,I’m delighted to share that our work on Spiro[4.6]-(di)benzodiazepine Indenes is now published in Organic Letters. Kudos to Koushik & all co-authors for their hard work and team spirit! @csir_iicb @JOC_OL
https://t.co/LPmcjyJP0t

[Writhabrata Sarkar @writhabrata7]

@ghoshata96 @ChemicalScience @MSUChem Congratulations brother!

[nagib lab @nagiblab]

Excited to share our new strategy to access carbenes - of all electronic types!

Congrats to Khue, Xueling, Bethany, Mohamed, Jake, Young, & Ilias on their beautiful work in @ScienceMagazine!

https://t.co/XkIsngZz6p

[Szymczak Group @SzymczakLab]

Check out our recent collaborative paper with the @SchindlerLab now out in @J_A_C_S showing a unique mechanism for metathesis. Great organic/inorganic tag-team collaboration featuring Jake, John, Dan, Troy, and Prof. Schindler!
#Ru @MichiganChem https://t.co/L1m5EJA0J5

[Writhabrata Sarkar @writhabrata7]

@ghoshata96 @ACSINORDivision @MSUChem @MSUNatSci Congratulations brother!

[Szymczak Group @SzymczakLab]

Check out our recent paper in @ChemicalScience showing new ways to repurpose fluoroalkanes to make highly substituted fluoroalkyl BPins. Great job Kaushik, Chandana, Ben, and the team @pfizer (Jisun, Simon, Kyle)!
@MichiganChem @UMichResearch #Lewisacid
https://t.co/Nuy6srQp8s

[Szymczak Group @SzymczakLab]

Check out our recent collaborative paper with the Jolliffe lab, now out in @angew_chem showing selective anion recognition by a tetratopic boronic acid receptor. Wonderful collaboration with Kate Jolliffe, Steve, and team during sabbatical! @MichiganChem
https://t.co/7YQtFffvTC

[Writhabrata Sarkar @writhabrata7]

@JoshuaThedford @Orgmet_ACS @SzymczakLab @MichiganChem @UMichResearch Thank you Josh!

[Writhabrata Sarkar @writhabrata7]

Just out in @Orgmet_ACS, we are excited to share our latest findings in diversifying the use of perchlorates in C-O bond forming reactions using a dual Fe/photo-HAT catalytic strategy. Huge thanks to the @SzymczakLab
@MichiganChem @UMichResearch
#2ndsphere #Hbonds #Catalysis

[Szymczak Group @SzymczakLab]

Check out our recent paper in @Orgmet_ACS showing new ways to repurpose perchlorates for controlled oxidation chemistry using tandem photo/Fe catalysis. Great job Writhabrata!
@MichiganChem
@UMichResearch
#2ndsphere4life #Hbondsftw https://t.co/1yXpjGjE9t

[Writhabrata Sarkar @writhabrata7]

@maity64099 @Orgmet_ACS @SzymczakLab @MichiganChem @UMichResearch Thank you Rajib!

[Writhabrata Sarkar @writhabrata7]

@natarajan_iicb @Orgmet_ACS @SzymczakLab @MichiganChem @UMichResearch Thank you Sir.

[Baran Lab @BaranLabReads]

🚨RADICAL RETHINK: STEREORETENTIVE CROSS COUPLING UNLOCKED🚨 Today in @ChemRxiv (https://t.co/zGZFCsK7aK) the first method for stereoretentive radical cross-coupling is disclosed. No fancy ligands or redox needed—just a Ni-diazene twist. 120 years after Gomberg, a new chapter begins.

Quick summary:
Since Gomberg discovered free radicals over 120 years ago and Kochi pioneered radical cross-coupling in the 1970s, this field has surged with interest for linking C(sp3) fragments. Unlike traditional polar methods (e.g., Suzuki), radical cross-coupling excels with saturated systems, offering mild conditions and chemoselectivity to build complex molecules from common fragments. Until now, enantiospecific radical cross-coupling was deemed impossible due to rapid racemization, but today that changes with readily available sulfonylhydrazides and a simple Ni-catalyst. This stereoretentive approach, enabled by a unique Ni-diazene transition state and driven by loss of N2, skips chiral ligands and redox steps, opening new possibilities for synthesis.

[Hansmann Lab @MMHansmann_chem]

We finish X with a scientific firework! Very proud of a brilliant team to finally publish our work on C(sp3)-atom transfer @ScienceMagazine ! Thanks to @ERC_Research https://t.co/0iM98jSM8k

[Writhabrata Sarkar @writhabrata7]

@Iamankush6 Thank you Ankush da!

[Writhabrata Sarkar @writhabrata7]

This work demonstrates the role hydrogen bonds play in enhancing O2 reactivity at a non-heme iron center. Great work led by Andrew and Jessica, glad to be a part of this work! Kudos to the whole the team!!
Those interested, please have a read.
#Hbonds #2ndsphere #MichiganChem

[Szymczak Group @SzymczakLab]

Check out our recent paper in @J_A_C_S showing how H-bonds accelerate O2 reactivity in Fe-TPA complexes. Great job Andrew, Jessi, and Writhabrata - a long time in the making! @MichiganChem @UMichResearch #2ndsphere4life #O2 https://t.co/QrbLaVXaBc

[J. Am. Chem. Soc. @J_A_C_S]

Impact of Secondary Sphere Hydrogen Bonds on O2 Reactivity within a Nonheme Iron Complex | Journal of the American Chemical Society @SzymczakLab @UMich @MichiganChem https://t.co/uk83MXB3A3

[Writhabrata Sarkar @writhabrata7]

@bsen1993 Thank you Bishu bhai.