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 +3 more
doaj +1 more source
SuFExable NH-Pyrazoles via 1,3-Dipolar Cycloadditions of Diazo Compounds with Bromoethenylsulfonyl Fluoride. [PDF]
J Org Chem, 2022 Yamanushkin P +3 more
europepmc +1 more source
A Novel Cycloaddition Reaction of Thermally Generated Sulfenes
CHIMIA, 1992 The highly strained ?-sultine 4, resulting from the addition of SO2 to benzobenzvalene, is shown to undergo a thermal cycloreversion which gives 1H-indene-1-thiocarbaldehyde dioxide (6) as an intermediate and subsequently 1H-indene-1 ...
Ulrich Burger +3 more
doaj +2 more sources
Acceleration of 1,3-Dipolar Cycloadditions by Integration of Strain and Electronic Tuning. [PDF]
J Am Chem Soc, 2021 Dones JM +4 more
europepmc +1 more source
An overview of the cycloaddition chemistry of fulvenes and emerging applications
Beilstein Journal of Organic Chemistry, 2019 The unusual electronic properties and unique reactivity of fulvenes have interested researchers for over a century. The propensity to form dipolar structures at relatively low temperatures and to participate as various components in cycloaddition ...
Ellen Swan +2 more
doaj +1 more source
Regio- and Diastereoselective 1,3-Dipolar Cycloadditions of 1,2,4-Triazin-1-ium Ylides: a Straightforward Synthetic Route to Polysubstituted Pyrrolo[2,1-f][1,2,4]triazines. [PDF]
ACS Omega, 2022 Galeta J +3 more
europepmc +1 more source
Nitropyridines as 2π-Partners in 1,3-Dipolar Cycloadditions with N-Methyl Azomethine Ylide: An Easy Access to Condensed Pyrrolines. [PDF]
Molecules, 2021 Bastrakov MA +3 more
europepmc +1 more source
ChemistryOpen, 2019 1,2,4‐Oxadiazole[4,5‐a]piridinium chloride adds nucleophiles to undergo electrocyclic ring opening affording 1,2,4‐oxadiazole dienamino derivatives. These pyridinium salts represent a special class of Zincke salts that are prone to rearrange when treated
Dr. Stefano Carella +2 more
doaj +1 more source
Synthesis of chiral-at-metal rhodium complexes from achiral tripodal tetradentate ligands: resolution and application to enantioselective Diels-Alder and 1,3-dipolar cycloadditions. [PDF]
RSC Adv, 2022 Tejero AG +6 more
europepmc +1 more source
Intermolecular 1,3-dipolar cycloadditions of azomethine imines
ARKIVOC, 2006 Raymond C. F. Jones +2 more
doaj +1 more source