Yadagiri & co-workers explore how #carbenes from diazo compounds unlock cyclopropenation, C–H insertion, annulation & cycloadditions under visible light🌈 Forging C=C, C–C & C–heteroatom bonds in a single step — often without a photocatalyst, opening new doors to #heterocycles

👉 buff.ly/BOkty6I

Join the Thieme Chemistry Journals Awardees 2026 #Cheminar and explore cutting-edge research in #photocatalysis, #sustainable solvents, novel #heterocycles & more.

📅 Mar 30
🕔 4 PM CEST

👉 Register here: bit.ly/4uOWN95

#ChemSky #OrganicChemistry

💡 Visible light unlocking #heterocycles!

Eosin Y–catalyzed reductive cyclization of N/O-aryl bisenones affords functionalized pyrrolidines & THFs, exclusive trans #isomers & enantioenriched products!

🔗 Read the full paper: bit.ly/4tXrvwj
#ChemSky #Photochemistry #OrganicChemistry

New cover art for @gbdlab.bsky.social manuscript on swapping carbonyls for nitrogen in saturated frameworks, giving direct access to N-positional analogues from common ketone precursors!
Read it on @chemrxiv.org!
#sciart ⌬ #research ⌬ #chemistry #heterocycles

Prof. Michael P. Doyle & L. De Angelis (UTSA) highlight how 1,2,3-triazine 1-oxides provide a powerful platform for constructing diverse #heterocycles. From nucleophilic substitution & #deoxygenation to Diels–Alder #reactions and more!

🔗 Read the graphical review: bit.ly/48qm7Jg
#ChemSky #Synthesis

✨ New Graphical Review!
A. V. Dobrydnev presents overview of synthetic strategies for building endocyclic sulfoximines. They possess unique #physicochemical and structural features, including #chirality and thermal stability.

🔗 Read more: bit.ly/482WRr7
#ChemSky #OrganicChemistry #Heterocycles

First MnO₂/I₂-catalyzed one-pot synthesis of benzo[d]imidazo[2,1-b]thiazoles!🚀 G. Anilkumar & co-workers achieve this via an #OrtolevaKing type reaction⚡This work showcases broad substrate scope, delivers good yields, and paves the way to fused #heterocycles 🧪
#manganese #iodine

👉 buff.ly/fh0Goya

Regioselective formation of naphtho[2,1-b]selenophenes via cascade cyclization of 1,3-diynylpropargyl alcohols promoted by iron(III) chloride and diorganyl diselenides This manuscript reports a selective diorganyl diselenide/iron(iii)-promoted strategy for the synthesis of selenium-containing heterocycles, specifically naphtho[2,1-b]selenophene derivatives, via casc...

🔥 𝐑𝐞𝐠𝐢𝐨𝐬𝐞𝐥𝐞𝐜𝐭𝐢𝐯𝐞 𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐧𝐚𝐩𝐡𝐭𝐡𝐨[𝟐,𝟏-𝐛]𝐬𝐞𝐥𝐞𝐧𝐨𝐩𝐡𝐞𝐧𝐞𝐬 𝐯𝐢𝐚 𝐜𝐚𝐬𝐜𝐚𝐝𝐞 𝐜𝐲𝐜𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝟏,𝟑-𝐝𝐢𝐲𝐧𝐲𝐥𝐩𝐫𝐨𝐩𝐚𝐫𝐠𝐲𝐥 𝐚𝐥𝐜𝐨𝐡𝐨𝐥𝐬 𝐩𝐫𝐨𝐦𝐨𝐭𝐞𝐝 𝐛𝐲 𝐢𝐫𝐨𝐧(𝐢𝐢𝐢) 𝐜𝐡𝐥𝐨𝐫𝐢𝐝𝐞 𝐚𝐧𝐝 𝐝𝐢𝐨𝐫𝐠𝐚𝐧𝐲𝐥 𝐝𝐢𝐬𝐞𝐥𝐞𝐧𝐢𝐝𝐞𝐬 by Gilson Zeni 𝘦𝘵 𝘢𝘭.

#selenium #heterocycles #cascade #FeCl3

🔗 doi.org/10.1039/D5QO01195G

Harnessing the synergistic power of light and electricity: an emerging frontier in catalytic heterocycle synthesis The strategic integration of photochemistry and electrochemistry in organic synthesis has opened new avenues for catalytic heterocycle synthesis. This highlight provides a comprehensive overview of ph...

Harnessing the synergistic power of light and electricity: an emerging frontier in catalytic heterocycle synthesis by Huang et al. ⚡🌞 Photoelectrocatalysis enables novel pathways for heterocycle formation. 🔗 doi.org/10.1039/D5QO...

#Photoelectrocatalysis #OrganicSynthesis #Heterocycles

Structurally divergent reactivity of 2,2-disubstituted azetidines – mechanistic insights and stereochemical implications of amide coupling and ring expansion to 5,6-dihydro-4H-1,3-oxazines Azetidines have gained traction in drug discovery for their ability to introduce conformational constraint and modulate physiochemical properties. Strategies that enable their selective functionalizat...

🔔Open Access:
Structurally divergent reactivity of 2,2-disubstituted azetidines

by Alan C. Spivey et al.

🧪 Conditions tune azetidines to N-acylation or ring expansion → diverse heterocycles for drug discovery.

🔗 doi.org/10.1039/D5QO...
#Azetidines #Heterocycles #DrugDiscovery

Pleased to be part of the 30th European #Conference on #Heterocycles in Chemistry #ECHC2025! Looking forward to sharing our latest research & connecting with the community in this dynamic field. Hope to see many of you there! echc2025.com

#ChemSky #Budapest

🚀 Explore how microwave-assisted synthesis is revolutionizing heterocyclic #chemistry! From triazoles to oxazoles, this review by Sanjeev Kumar et al. showcases faster, greener, and more selective routes.

🔗 www.thieme-connect.com/products/ejo...

#GreenChemistry #Heterocycles #MicrowaveChemistry

Researchers from the University of Innsbruck developed a divergent synthesis of 7-aminomethyl-7-#deazapurines (preQ1 and DPQ1) with various electrophilic handles extending the aminomethyl moiety. 
➡️ https://tinyurl.com/372t238v
#heterocycles #pyrrolopyrimidines #queuosine #riboswitches 
#BJOC 💎🔓

Description Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...

We are recruiting for a postdoctoral Research Associate in Synthetic Chemistry to work in C-H functionalisation. Come join us Imperial! @imperialchemistry.bsky.social
3-year position. Closing: 19-March-2025. shorturl.at/uwERp
#Chempostdoc, #CHfunctionalization, #Heterocycles

Starting TOMORROW 📅 February 13, 2025, at 🕒 5:00 PM CET: Online #BeilsteinTalk “From drugs to #catalysts: Application of #boron #heterocycles" with Dennis G. Hall, University of Alberta.

Participation is FREE! Just register 🔗 […]

[Original post on hessen.social]

Embark on a journey through this captivating account by Sambasivarao Kotha and co-workers on strategies combining metathesis with various reactions to generate molecular diversity in #carbocycles, #macrocycles, and #heterocycles.
👉 thieme-connect.com/products/ejo...

Coming up next week: Online #BeilsteinTalk “From drugs to #catalysts: Application of #boron #heterocycles" with Dennis G. Hall, University of Alberta.

Register for FREE! 🔗 […]

[Original post on hessen.social]

Save the date: 📅 Feb. 13, 2025 🕒 5–6 pm CET:
Online #BeilsteinTalk “From drugs to #catalysts: Application of #boron #heterocycles" with Dennis G. Hall, University of Alberta.

Register for FREE! 🔗 […]

[Original post on hessen.social]

Dive into this fascinating paper by Svetlana B. Tsogoeva @svetlanatsogoeva.bsky.social and co-workers on the facile synthesis of new antiviral fluoro-quinazolines!
#dominoreaction #heterocycles

Learn more 👉 www.thieme-connect.com/products/ejo...

Curious.

Missing something?

For the journal Heterocycles, CLOCKSS appears to have volume 1, no. 1 and volume 1, no. 3

but not volume 1, no. 2

Now I have to check if volume 1, no. 2 ever existed...

#Heterocycles #CLOCKSS

triggered.edina.clockss.org/ServeContent

Also, 205 days is significantly longer than the contractual minimum of 183 days (six months).

Are we going to review why there was a delay of more than 3 weeks in excess of the minimum date the content could (ought?) to have been triggered-at & made available?

#CLOCKSS #Heterocycles

At least 205 continuous days where the journal was not available online, all for what... was it worth waiting that long?

Does anyone think we should wait a bit less next time this happens?

Would you wait that long if it was a journal full of cancer research?

#CLOCKSS #Heterocycles

Next question: who pays for CLOCKSS?

Answer: research libraries

Perhaps those libraries who pay to support the work of CLOCKSS might want to weigh-in at some point?

clockss.org/digital-archive-communit...

#Heterocycles

Screenshot of my personal web archive at Internet Archive: https://clockss.org/triggered-content/ May 08, 2024 May 09, 2024 May 10, 2024 May 16,2024 May 20, 2024 May 23, 2024 May 28, 2024 May 29, 2024 Jun 03, 2024 Jun 04, 2024 Jun 05, 2024 Jun 17, 2024 Jun 19, 2024 Jun 20, 2024

I am continuing to document the inexplicable non-release of Heterocycles journal content at CLOCKSS, using the Internet Archive Wayback Machine for webpage archiving.

Demonstrable, third-party evidence that CLOCKSS did not make the journal available on any of these days.

#Heterocycles

Dr Maria Chrzanowska for instance has a solo authored article in Heterocycles, that was published in 2023. I would be super pissed-off right now if I was her...

https://www.x-mol.net/paper/article/1712328667134971904

#Heterocycles

To: Jeenavl regarding the journal Heterocycles - Dear Dr Vineet Jeena, | note that you have authored publications in the journal Hetero... 2120 To: hagiwara regarding the journal Heterocycles - Dear Prof. Hisahiro Hagiwara, | note that you have authored publications in the journal ... 213 To: miklos.nyer. regarding the journal Heterocycles - Dear Dr Miklés Nyerges, | note that you have authored publications in the journal ‘Hete... 2110 To: yukioh regarding the journal Heterocycles - Dear Dr Yukio HITOTSUYANAGI, | note that you have authored publications in the journ... 2106 To: mohamed.aba. regarding the journal Heterocycles - Dear Dr Mohamed Abarbri, | note that you have authored publications in the journal H... 2101 To: mtayu regarding the journal Heterocycles - Dear Dr Masanori Tayu, | note that you have authored publications in the journal "Heter... 20156 To: pisung regarding the journal Heterocycles - Dear Dr Ping-Jyun Sung, | note that you have authored many publications in the journ... 20142

surely the authors of papers published in 2023 will care about it? They will remember, no? Not all research is "hit n' run (away)" is it? Someone must be proud of their research?

#Heterocycles

Dear Dr Ping-Jyun Sung, I note that you have authored many publications in the journal 'Heterocycles' Did you know that the publisher of the journal has completely taken the entire journal offiine, so that no-one can read it? See the piece written about it in Chemistry World [1] 1 was wondering what you think about this from your perspective as an author of many articles in the journal? You want people to be able to read and cite your research, right? Did you know there is an organization called CLOCKSS that has a full digital copy of the journal, but so far CLOCKSS has not yet made it available from their website? Do you think CLOCKSS should hurry-up in making the journal available online again, so that people can once again read and cite your research? Warm regards, Ross [1] hitps://www chemistryworld. com/news/a-key-chemistry-journal-disappeared-from-the-web-others-are-at-risk/4019265 article

Trying a new approach with #Heterocycles now.

I'm emailing authors who have recently (within the last 10 years) published more than 1 article in the journal, so see what they think about both the publisher taking it offline, and the inaction from CLOCKSS to […]

[Original post on mastodon.social]

At least 194 continuous days that the journal Heterocycles has been offline. Still no sign of it at CLOCKSS 😔 rossmounce.co.uk/2024/06/11/time-to-updat...

#Heterocycles

Time to update the CLOCKSS? Why has't Heterocycles been released yet? rossmounce.co.uk/2024/06/11/time-to-updat...

cc @chartgerink @Luke_Drury

#Heterocycles #CLOCKSS #Governance #Community #ScienceAsAPublicGood

A key #chemistry #journal disappeared from the web.
Others are at #risk
The case of the CHEMISTRY JOURNAL #Heterocycles is not unique.
1/1
A January 2024 study of more than 7.4 million studies found that just under 28% were not preserved in any online archive,