Results 221 to 230 of about 157,130 (323)

Rapid access to the core of malayamycin A by intramolecular dipolar cycloaddition. [PDF]

Beilstein J Org Chem
Liu Y, Yang Y, Yang C, Huang SH, Jin J, Hong R.   +5 more
europepmc   +1 more source

Direct photochemical intramolecular [4 + 2] cycloadditions of dehydrosecodine-type substrates for the synthesis of the iboga -type scaffold and divergent [2 + 2] cycloadditions employing micro-flow system

Gavin Tay, Soushi Nishimura, Hiroki Oguri   +2 more
openalex   +2 more sources

Cationic Polar Cycloaddition with a-Chlorosulfides

, 1984
Hiroyuki Ishibashi, Y. TAMURA, Shuji Akai, H. D. Choi, H. Nakagawa   +4 more
openalex   +1 more source

Gold(I)‐Catalyzed Domino Cyclization for the Construction of Trispirocyclic Cyclohexanes

ChemistryEurope, EarlyView.
We describe herein a series of intricate trispirocyclic architectures that have been synthesized from readily available substrates through an operationally simple one‐pot transformation under mild conditions. An unprecedented gold(I)‐catalyzed domino cyclization involving 2‐ethynylbenzyl alcohol derivatives and heterocyclic α,β‐unsaturated imines ...
Manon Genet, Jérôme Marrot, Isabelle Chataigner, Xavier Moreau   +3 more
wiley   +1 more source

1-Naphthyl-TADDOL/Emim BF4: A new catalytic system for the asymmetric addition of Chan’s diene to aromatic aldehydes

Open Chemistry, 2010
Villano Rosaria, Acocella Maria, Sio Vincenzo, Scettri Arrigo   +3 more
doaj   +1 more source

Lewis Acid-Catalyzed Divergent (4+3)/(4+2) Annulations of <i>o</i>-Quinone Methides with Bicyclo[1.1.0]butanes Lead to sp³-Rich Oxabicyclic Frameworks. [PDF]

Org Lett
Mondal S, Patel M, Hazra S, Hajra S, Saha J.   +4 more
europepmc   +1 more source

Intramolecular N···F Pnictogen Bond Mitigates the Explosive Behavior of Azido‐L‐Phenylalanines

ChemistryEurope, EarlyView.
An intramolecular N···F pnictogen bond is the key for the chemical stabilization of the fluorinated azido‐L‐phenylalanines, mitigating the risk of explosion and thus facilitating the handling and storage of these materials. Organic azides are versatile intermediates but are plagued by intrinsic instability and potential explosiveness. Here, it is shown
Andrea Pizzi, Eleonora Veronese, Nicola Demitri, Marco Saccone, Pierangelo Metrangolo, Giancarlo Terraneo   +5 more
wiley   +1 more source

Cycloaddition and functionalization reactions involving tropone. [PDF]

RSC Adv
Doraghi F, Edareh MH, Larijani B, Mahdavi M.   +3 more
europepmc   +1 more source

Recent Advances in the Synthesis of 2-Substituted Oxetanes [PDF]

, 2015
Bull, JA, Davis, O
core   +1 more source

The Challenging P‐Alkylation of Aromatic Phosphorus Heterocycles and Follow‐Up Reactions

ChemistryEurope, EarlyView.
P‐alkylation of λ3σ2‐phosphinines is hindered by weak nucleophilicity and scarce synthetic access, previously requiring multistep routes or extreme electrophiles. A direct ambient‐condition method is reported using 3,5‐bis(trimethylsilyl)‐phosphinine/B(C6F5)3 with esters or iso(thio)cyanates to generate stable 1‐R‐phosphininium salts.
Samantha Frank, Ádám Horváth, Duy Nguyen, Moritz J. Ernst, Simon Steinhauer, Zoltán Benkő, Christian Müller   +6 more
wiley   +1 more source