Results 81 to 90 of about 3,577 (190)

Phase‐Transfer‐Catalyzed Interrupted Barton–Zard Reaction Between Electron‐Deficient Indoles and Benzophenone‐Derived Isocyanides

European Journal of Organic Chemistry, Volume 29, Issue 19, 22 May 2026.
A cascade reaction under phase‐transfer conditions between 3‐nitro indoles and isocyanomethylene dibenzenes affords the construction of pyrrolo[3,4‐b]indole cores. Control experiments provide insight into moderate product yields and clarify why the reaction is not amenable to asymmetric induction. A cascade reaction enabling the construction of pyrrolo[
Ana Mikleušević, Ines Bašić, Mateja Matišić, Josip Rešetar, Matija Gredičak   +4 more
wiley   +1 more source

Reactions of 1,2,4‐Oxadiazole[4,5‐a]piridinium Salts with Alcohols: the Synthesis of Alkoxybutadienyl 1,2,4‐Oxadiazoles

ChemistryOpen, 2020
1,2,4‐Oxadiazole[4,5‐a]piridinium salts add alcohols and alkoxides to undergo electrocyclic ring opening affording alkoxybutadienyl 1,2,4‐oxadiazole derivatives.
Dr. Mattia Moiola, Dr. Marco Leusciatti, Prof. Dr. Paolo Quadrelli   +2 more
doaj   +1 more source

Enantioselective 1,3-Dipolar Cycloadditions of α-Methylene Lactams to Construct Spirocycles. [PDF]

Org Lett, 2023
Nishiura Y, Gonzalez KJ, Cusumano AQ, Stoltz BM.   +3 more
europepmc   +1 more source

Phospha-Münchnones: Electronic Structures and 1,3-Dipolar Cycloadditions

, 2016
The reaction of imines, acid chlorides, PR3, and base generates a new class of 1,3-dipoles: phospha-Münchnones. These 1,3-dipoles can undergo cycloadditions with alkynes followed by loss of phosphine oxides to form pyrroles.
Bruce A. Arndtsen (1310721), Marie S. T. Morin (2254561), Elizabeth H. Krenske (1333482), Francine Bélanger-Gariépy (2290783), K. N. Houk (1247004), Daniel J. St-Cyr (1881292)   +5 more
core   +2 more sources

An Overlooked Pathway in 1,3-Dipolar Cycloadditions of Diazoalkanes with Enamines. [PDF]

Angew Chem Int Ed Engl, 2022
Li L, Mayer P, Stephenson DS, Ofial AR, Mayer RJ, Mayr H.   +5 more
europepmc   +1 more source

Photocatalytic (3 + 2) dipolar cycloadditions of aziridines driven by visible-light. [PDF]

Chem Sci, 2023
Mazzarella D, Bortolato T, Pelosi G, Dell'Amico L.   +3 more
europepmc   +1 more source

Dynamic Catalytic Highly Enantioselective 1,3-Dipolar Cycloadditions. [PDF]

Angew Chem Int Ed Engl, 2021
Yildirim O, Grigalunas M, Brieger L, Strohmann C, Antonchick AP, Waldmann H.   +5 more
europepmc   +1 more source

A novel application of 2-silylated 1,3-dithiolanes for the synthesis of aryl/hetaryl-substituted ethenes and dibenzofulvenes

Beilstein Journal of Organic Chemistry, 2017
Trimethylsilyldiazomethane (TMS-CHN2) reacts readily with hetaryl thioketones to give sterically crowded 2-trimethylsilyl-4,4,5,5-tetrahetaryl-1,3-dithiolanes with complete regioselectivity at −75 °C as well as at rt.
Grzegorz Mlostoń, Paulina Pipiak, Róża Hamera-Fałdyga, Heinz Heimgartner   +3 more
doaj   +1 more source

Catalytic Enantioselective 1,3-Dipolar Cycloadditions between Nitrones and Alkenes Using a Novel Heterochiral Ytterbium(III) Catalyst

, 2016
Catalytic Enantioselective 1,3-Dipolar Cycloadditions between Nitrones and Alkenes Using a Novel Heterochiral Ytterbium(III ...
Shū Kobayashi (2450098), Mikako Kawamura (3004275)   +1 more
core   +1 more source

SuFExable NH-Pyrazoles via 1,3-Dipolar Cycloadditions of Diazo Compounds with Bromoethenylsulfonyl Fluoride. [PDF]

J Org Chem, 2022
Yamanushkin P, Kaya K, Feliciano MAM, Gold B.   +3 more
europepmc   +1 more source