Results 141 to 150 of about 17,602 (278)
Theme Park Regionalization: A Comparison of Two Critical Cases
Tijdschrift voor Economische en Sociale Geografie, Volume 117, Issue 3, Page 391-409, July 2026.Abstract The growth ambitions of theme parks and zoos in recent years have sparked academic and policy attention regarding whether such amusement facilities should be viewed not just as isolated leisure objects, but also as contributors to regional economic development.
Patrick Witte, Martijn van den Hurk
wiley +1 more source
Chemistry – A European Journal, Volume 32, Issue 24, 23 June 2026.Visible‐light irradiation of nitro‐perylenediimide in the presence of triphenylphosphine reveals an unexpected pathway competing with the classical Cadogan cyclization. Mechanistic investigations uncover the rapid and selective formation of bay‐functionalized 1‐iminophosphorane‐12‐hydroxy perylenediimide derivatives.
Manuel Pedrón Laserna +2 more
wiley +1 more source
1,1‐and 1,2‐Diborylalkenes: Preparation and Synthetic Applications
Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.In this review, we highlight recent advances in the synthesis and reactivity of 1,1‐diborylalkenes and 1,2‐diborylalkenes, along with various transformations leading to C‐C, C‐heteroatom, and multicomponent products. By providing a comprehensive and practical resource, this review aims to assist researchers in exploring the synthetic utility of 1,1 and
Jayaram Vankudoth +2 more
wiley +1 more source
European Journal of Organic Chemistry, Volume 29, Issue 23, 16 June 2026.A Rh(III)‐catalyzed [4 + 2] annulation of 2‐aryl imidazoles/benzimidazoles with α‐diazocarbonyl compounds is developed for the synthesis of π‐conjugated imidazo/benzimidazo[2,1‐a]isoquinolinones systems. Mechanistic studies and control experiment reveal that the reaction proceeds via imidazole‐directed ortho C(sp2)–H activation, followed by carbene C–H
Ganesh P. Pawar +4 more
wiley +1 more source
Remarkable Formation of Indene Derivatives Upon Friedel–Crafts Acylation Reactions
European Journal of Organic Chemistry, Volume 29, Issue 23, 16 June 2026.This shows indene derivatives. Under the reaction conditions of a Friedel–Crafts acylation, alkyl benzenes underwent an unprecedented cyclopentannulation furnishing indene derivatives. Alkylbenzene derivatives react with two equivalents of pivaloyl chloride (PivCl) in the presence of aluminum trichloride under formation of indene derivatives with up to
Leah Bantel +3 more
wiley +1 more source
Iterative Synthesis of Pentacene Derivatives with Continuous Boron–Oxygen Bonds
Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.An iterative synthetic strategy enables the controlled introduction of continuous multiple B–O bonds at the zigzag edge of acenes. A simple two‐step cycle—ipso iodination and Suzuki cross‐coupling/condensation—efficiently constructs BO‐acenes ranging from naphthalene to pentacene.
Seonghwa Jeong +8 more
wiley +2 more sources
Palladium-catalyzed benzocyclization reactions of quinoline-2-carboxamides via sequential C-H/N-H functionalization. [PDF]
Beilstein J Org ChemSugita S, Okano K, Mori A.
europepmc +1 more source
Chemistry – A European Journal, Volume 32, Issue 22, 9 June 2026.Pictet‐Spengler Intermediate of a cyclic secondary amine perylene diimide undergoing amine‐triggered conversion to azabenz‐annulated perylene diimide, inducing a high‐contrast green‐to‐yellow color change along with fluorescence turn‐on, demonstrating intuitive “safe” to “warning” dual‐mode sensing.
Irene E. Park +2 more
wiley +1 more source