Wickens Group(@WickensGroup) 's Twitter Profile Photo

Time to make more triangles! We introduce our new diastereoselective cyclopropanation protocol using the electrochemical dication pool strategy. Check out all the cool cyclopropanes you can now access at bit.ly/40gdkCV!

Time to make more triangles! We introduce our new diastereoselective cyclopropanation protocol using the electrochemical dication pool strategy. Check out all the cool cyclopropanes you can now access at bit.ly/40gdkCV!
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ESOR2023(@ESOR2023) 's Twitter Profile Photo

Ricardo Meyrelles of University of Vienna presents a contributed talk ESOR2023 YRS on protonated cyclopropane: the key intermediate towards cationic cyclopropanation to form 6,8-cycloeudesmanes.

Ricardo Meyrelles of University of Vienna  presents a contributed talk @ESOR2023 YRS on protonated cyclopropane: the key intermediate towards cationic cyclopropanation to form 6,8-cycloeudesmanes. #ESOR2023
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Carbenes_Nitrenes(@carbene_nitrene) 's Twitter Profile Photo

Christopher Uyeda shows that geminal dihaldes can be efficiently applied as non-stabilised carbene precursors using Ni and Co catalysts! Efiicient enantioselective cyclopropanation, even applied in pharma on production scale now! Fantastic lecture!

Christopher Uyeda shows that geminal dihaldes can be efficiently applied as non-stabilised carbene precursors using Ni and Co catalysts! Efiicient enantioselective cyclopropanation, even applied in pharma on production scale now! Fantastic lecture!
#ISCNC2023
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Mendoza Lab 🇺🇦 - Sustainable Organic Synthesis(@MendozaLab) 's Twitter Profile Photo

Can you guess the 3 new carbene precursors ❤️💚💙 for enantioselective cyclopropanation of the **aliphatic alkenes** and **1,3-dienes** below?? 🤩

Can you guess the 3 new carbene precursors ❤️💚💙 for enantioselective cyclopropanation of the **aliphatic alkenes** and **1,3-dienes** below?? 🤩
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Dan Priebbenow(@Priebbenow_Chem) 's Twitter Profile Photo

Our group's latest work involving the visible light induced cyclopropanation of nucleophilic carbene intermediates is now live on ChemRxiv
chemrxiv.org/engage/chemrxi…

Our group's latest work involving the visible light induced cyclopropanation of nucleophilic carbene intermediates is now live on @ChemRxiv
chemrxiv.org/engage/chemrxi…
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Ramesh Giri (रमेश गिरी)(@Giri_Research) 's Twitter Profile Photo

Check this out on Archive now!
Photosensitized Dioxygen Enables Intermolecular Cyclopropanation of Alkenes Directly with Active Methylene Compounds | ChemRxiv doi.org/10.26434/chemr…

Check this out on Archive now! 
Photosensitized Dioxygen Enables Intermolecular Cyclopropanation of Alkenes Directly with Active Methylene Compounds | ChemRxiv doi.org/10.26434/chemr…
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Bas de Bruin(@bruin_bas) 's Twitter Profile Photo

Our paper about 'Mechanistic investigations into the cyclopropanation of electron deficient alkenes with ethyl diazoacetate using [Co(MeTAA)]' is now online in Journal of Catalysis:

authors.elsevier.com/sd/article/S00…

Well done Andrei and Marie!

Our paper about 'Mechanistic investigations into the cyclopropanation of electron deficient alkenes with ethyl diazoacetate using [Co(MeTAA)]' is now online in Journal of Catalysis:

authors.elsevier.com/sd/article/S00…

Well done Andrei and Marie!
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Marcos García Suero(@MarcosGSuero) 's Twitter Profile Photo

A transition-metal-free & diazo-free styrene cyclopropanation - now published in Chemical Science pubs.rsc.org/en/content/art…

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Aubry K. Miller(@DrugDiscov_DKFZ) 's Twitter Profile Photo

This week's quiz, on the synthesis of basiliolide B by the Lee group published in Angewandte Chemie, is a tough one. It includes a cyclopropanation/fragmentation strategy to set two stereocenters followed later by everyone's favorite cycloaddition. Good luck!

This week's quiz, on the synthesis of basiliolide B by the Lee group published in @angew_chem, is a tough one. It includes a cyclopropanation/fragmentation strategy to set two stereocenters followed later by everyone's favorite cycloaddition. Good luck!
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Sarlah Lab(@SarlahLab) 's Twitter Profile Photo

Check out new weekly topics - another series of classics! This week we highlighted the synthesis of quebrachamine (tinyurl.com/ybwag32m), Xanax (tinyurl.com/ycxmqflw), discodermolide (tinyurl.com/yd83558m) and enantioselective cyclopropanation (tinyurl.com/ya5d7db5).

Check out new weekly topics - another series of classics! This week we highlighted the synthesis of quebrachamine (tinyurl.com/ybwag32m), Xanax (tinyurl.com/ycxmqflw), discodermolide (tinyurl.com/yd83558m) and enantioselective cyclopropanation (tinyurl.com/ya5d7db5).
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Mechanochemistry Papers(@MechChemPapers) 's Twitter Profile Photo

Mechanochemical Simmons–Smith cyclopropanation via ball-milling-enabled activation of zinc(0) pubs.rsc.org/en/Content/Art…

Mechanochemical Simmons–Smith cyclopropanation via ball-milling-enabled activation of zinc(0) pubs.rsc.org/en/Content/Art…
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Organic Reactions(@OrgReactions) 's Twitter Profile Photo

Professor André Charette shares his favorite OR chapter from Vol. 77, the Kulinkovich cyclopropanation reaction: carboxylic acid derivatives with Grignard reagents, in the presence of titanium isopropoxide, yield cis-dialkylcyclopropanols. Read chapter: onlinelibrary.wiley.com/doi/10.1002/04…

Professor André Charette shares his favorite OR chapter from Vol. 77, the Kulinkovich cyclopropanation reaction: carboxylic acid derivatives with Grignard reagents, in the presence of titanium isopropoxide, yield cis-dialkylcyclopropanols. Read chapter: onlinelibrary.wiley.com/doi/10.1002/04…
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Molander Group(@molandergroup) 's Twitter Profile Photo

Check out our new J. Am. Chem. Soc. article on the photoredox cyclopropanation of olefins! An awesome collaborative effort with the Gutierrez lab at UMD Department of Chemistry & Biochemistry both developing and understanding a new silicate-based reagent. pubs.acs.org/doi/10.1021/ja…

Check out our new @J_A_C_S  article on the photoredox cyclopropanation of olefins! An awesome collaborative effort with the Gutierrez lab at @ChemBiochemUMD both developing and understanding a new silicate-based reagent.  pubs.acs.org/doi/10.1021/ja…
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Ramesh Giri (रमेश गिरी)(@Giri_Research) 's Twitter Profile Photo

Finally out in Science! Check out our new photoredox method for alkene cyclopropanation - no carbenes needed!

Photosensitized O2 enables intermolecular alkene cyclopropanation by active methylene compounds | Science science.org/doi/10.1126/sc…

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Rovis Group(@RovisGroup) 's Twitter Profile Photo

Check out our new method for Rh(III)-catalyzed directed cyclopropanation of allylic alcohols initiated by C–H activation in J. Am. Chem. Soc. ! pubs.acs.org/doi/10.1021/ja…

Check out our new method for Rh(III)-catalyzed directed cyclopropanation of allylic alcohols initiated by C–H activation in @J_A_C_S ! pubs.acs.org/doi/10.1021/ja…
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Peter Zhang(@PeterZhang_BC) 's Twitter Profile Photo

A short description on asymmetric radical cyclopropanation of alkenes via Co(II)-based metalloradical catalysis (MRC) as “Mechanism of the Month” Trends in Chemistry doi.org/10.1016/j.trec…

A short description on asymmetric radical cyclopropanation of alkenes via Co(II)-based metalloradical catalysis (MRC) as “Mechanism of the Month” @TrendsChemistry #MetalloradicalCatalysis doi.org/10.1016/j.trec…
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Synthesis Workshop(@MatthewHorwitz1) 's Twitter Profile Photo

How can photoredox catalysis be used in cyclopropanation reactions? Today, Ana Garcia Herraiz (alumnus of Thieme Chemistry Marcos García Suero ICIQ) joins us on Synthesis Workshop to explain this approach!

Key paper:
Synthesis 2019, 51, 2821–2828.
doi.org/10.1055/s-0037…

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