Results 61 to 70 of about 1,947 (193)

Photooxygenation Reactions of Olefins Under Flow Conditions: An Experimental and In‐Silico Study

ChemPhotoChem, Volume 9, Issue 6, June 2025.
This study focuses on the setup and validation of the oxygenation reaction of alkenes to 1,2‐dioxetanes and hydroperoxides by a LED‐driven flow chemistry approach. An in‐silico a model was trained on reaction data that can tailor a specific chemical scope through fine‐tuning.
Giada Moroni, Yi‐Hsuan Tsai, Marco Ballarotto, Andrea Carotti, Jean‐Christophe M. Monbaliu, Antimo Gioiello   +5 more
wiley   +1 more source

9,10-Dihydrophenanthrene with Two Spiro(dibenzocycloheptatriene) Units: A Highly Strained Caged Hydrocarbon Exhibiting Reversible Electrochromic Behavior

Molecules, 2017
The title dispiro hydrocarbon 1 was designed as a new electrochromic material. This multiply clamped hexaphenylethane-type electron donor was prepared from 2,2’-diiodobiphenyl via biphenyl-2,2’-diylbis(dibenzotropylium) 22+ salt.
Yusuke Ishigaki, Yuki Hayashi, Kazuma Sugawara, Takuya Shimajiri, Wataru Nojo, Ryo Katoono, Takanori Suzuki   +6 more
doaj   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D., Porco, John A., Stephenson, Corey R.J.   +2 more
core   +2 more sources

Reaction of the Diferrocenylphosphenium Ion with Diphenylacetylene and 2,3‐Dimethyl‐1,3‐Butadiene

Zeitschrift für anorganische und allgemeine Chemie, Volume 651, Issue 8, May 28, 2025.
The cycloaddtion reactions of the title compounds quantitatively provided new phosphirenium and 3‐phospholenium ions. The reaction of the diferrocenylphosphenium ion, [Fc2P][B(C6F5)4] with diphenylacetylene and 2,3‐dimethyl‐1,3‐butadiene, gives rise to the quantitative formation of the phosphirenium ion [Fc2P(CPh)2][B(C6F5)4] (1) and the 3 ...
Corina Stoian, Sergey Ketkov, Jens Beckmann   +2 more
wiley   +1 more source

An expeditious and environmentally benign synthesis of dispiro-3-phenylpyrrolothiazoles in ACI/EG eutectic mixture and its antioxidant and antimicrobial activities against urinary tract pathogens

BMC Chemistry, 2019
The present study reveals the robust and facile methodology for the synthesis of massively selective dispiro-3-phenylpyrrolothiazole hybrids via one-pot 1,3-dipolar cycloaddition reaction by environmentally supported solvents and to evaluate their ...
Govindasami Periyasami, Karuppiah Ponmurugan, Natarajan Arumugam, Raju Sureshkumar, Mostafizur Rahaman, Durairaju Periyan, Naif Abdullah Al-Dhabi, Shaykha Alzahly, Ali Aldalbahi   +8 more
doaj   +1 more source

Cyclische Diazastannylene. - VII : Zur Reaktion eines Diazastannylens mit Sauerstoff : die Kristall- und Molekülstruktur eines neuen Polycyclus [PDF]

, 1979
Bei der Umsetzung des Stannylens me2Si(Ntbu)2Sn mit Sauerstoff entsteht als Reaktionsprodukt Sn6Si4O4N8C40H96, welches in der triklinen Raumgruppe P mit Z = 1 kristallisiert (a = 1360,8(5), b = 1362,3(5), c = 1086,9(4) pm, = 108,0(1), = 94,9(1), = 118,
Recktenwald, Otmar, Veith, Michael
core  

Recent Advancements in the Cyclization Strategies of 1,3‐Enynes Towards the Synthesis of Heterocyclic/Carbocyclic Frameworks

Chemistry – An Asian Journal, Volume 20, Issue 8, April 17, 2025.
In this review, the advancements in the cyclization of 1,3‐enynes to construct structurally diverse heterocyclic and carbocyclic frameworks are portrayed comprehensively. Divergent cyclization protocols along with mechanistic aspects for key transformations are also detailed. Abstract 1,3‐Enynes have demonstrated their utility as valuable precursors to
Akash P. Sakla, Shams Aaghaz, Shujauddin Ahmed, Naziya Neshat, Ahmed Kamal   +4 more
wiley   +1 more source

Synthesis and the Spectral Investigations of Spiro, Ansa and Bridged Derivatives of Cyclochlorotriphosphazenes

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2011
The reactions of hexachlorocyclotriphosphazatriene, N3P3Cl6 (1) with 2,2-dimethylpropane-1,3-diol yield 9 new cyclophosphazene derivatives. One monospiro, N3P3Cl4[(OCH2)2-CMe2], dispiro, N3P3Cl2[(OCH2)2-CMe2]2 and tris-spiro N3P3[(OCH2)2-CMe2]3 ...
Sedat Ture
doaj   +1 more source

Reactions of cyclochlorotriphosphazatriene with 1-amino-2-propanol. Calorimetric and spectroscopic investigations of the derived products

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
Reactions of hexachlorocyclotriphosphazatriene,N3P3Cl6 (1)with 1-amino-2-propanol (2), in(1:1:2, 1:2:4 and 1:3:6) mole ratios, in excess of NaH, in THF and acetonitril solutionsyield a total of 6 novel products:onemono-open chain, N3P3Cl5[HN-CH2-CH(CH3 ...
Murat Tuna, Rafig Gurbanov, Sedat Türe
doaj   +1 more source

Revisiting Butafulvene Formation by Thermal Dimerization of Fluorene‐Based Dialkynes ‐ Effects of Aromatic Substituents

Chemistry – A European Journal, Volume 31, Issue 1, January 2, 2025.
The dimerization of fluorene based dialkynes into planarized butafulvenes is rediscovered and its scope expanded. The stabilities of the isobenzenes involved in the formation are explored and the often proposed antiaromaticity is investigated for these near planar derivatives. Abstract Butafulvenes, together with pentafulvenes and [3]radialenes, form a
Moritz P. Schuldt, Tatjana Maximenko, Frank Rominger, Michael Mastalerz   +3 more
wiley   +1 more source