Results 131 to 140 of about 31,895 (247)

Nonmetathesis Heterocycle Formation by Ruthenium-Catalyzed Intramolecular [2 + 2] Cycloaddition of Allenamide-enes to Azabicyclo[3.1.1]heptanes

, 2016
Tomomi Nada, Yusuke Yoneshige, Yasuhiro, Takashi Matsumoto, H. Fujioka, S. Shuto, M. Arisawa   +6 more
semanticscholar   +1 more source

Acyclic Hydrocarbon α,ω‐Dienes: From Biomass and Plastic Upcycling to Carbocycles, Precision Polymers, and Cross‐Linked Elastomers

ChemSusChem, Volume 19, Issue 14, 29 July 2026.
Hydrocarbon α,ω‐dienes are mainly produced from steam‐cracking derivatives, but high costs, complexity, and environmental impact limit their use. This review highlights sustainable paths from biomass and plastic upcycling, and surveys catalytic transformations into carbocycles and specialty polymers, emphasizing their role as modular building blocks ...
Rosa Villaccio, Giuseppe Leone
wiley   +1 more source

Synthesis of (2<i>R</i>,4<i>S</i>)-4-Amino-5-hydroxybicyclo[3.1.1]heptane-2-carboxylic Acid via an Asymmetric Intramolecular Mannich Reaction. [PDF]

J Org Chem
Dukes AO, Weerawarna PM, Devitt AN, Silverman RB.   +3 more
europepmc   +1 more source

(2‐Phosphinophenyl)aluminum Dichloride Complexes as Intramolecular Al/P Frustrated Lewis Pairs for Ketone, Ester, and Imine Activation

Chemistry – A European Journal, Volume 32, Issue 28, 25 July 2026.
Three 2‐phosphinophenylaluminum dichloride complexes were synthesized and characterized as novel intramolecular FLPs. These FLP systems exhibit high Lewis acidity and effectively activate challenging substrates including aliphatic ketones, imines, and esters. DFT analysis revealed that strain release and Al–P dynamics govern their reactivity. Abstract (
Yoshihiro Nishimoto, Hirotaka Okamoto, Makoto Yasuda   +2 more
wiley   +1 more source

Diaryl Thiourea Catalysts Promote the Formation of Propargyl Enol Ethers in the Claisen Rearrangement Sequence

European Journal of Organic Chemistry, Volume 29, Issue 28, 25 July 2026.
The allenyl ketone products of an enol ether formation–propargyl Claisen rearrangement sequence are susceptible to acid‐catalyzed isomerization to yield the corresponding conjugated dienones. A diaryl thiourea catalyst was found to promote the desired reaction sequence while suppressing the competing isomerization.
Veera K. Bruce‐Salmenkivi, Kaveh Farshadfar, Kari Laasonen, Petri M. Pihko   +3 more
wiley   +1 more source

Synthesis of 2-aminomethyl-4-phenyl-1-azabicyclo[2.2.1]heptanes via LiAlH₄-induced reductive cyclization of 2-(4-chloro-2-cyano-2-phenylbutyl)aziridines and evaluation of their antimalarial activity.

Bioorganic & Medicinal Chemistry Letters, 2013
M. D’hooghe, Karel Vervisch, K. Törnroos, T. Verhaeghe, T. Desmet, C. Lategan, Peter J. Smith, K. Chibale, N. De Kimpe*   +8 more
semanticscholar   +1 more source

Three-dimensional saturated C(sp³)-rich bioisosteres for benzene. [PDF]

Nat Rev Chem
Tsien J, Hu C, Merchant RR, Qin T.
europepmc   +1 more source

Novel Sulfonium Reagents for the Modular Synthesis of Spiro[2.3]Hexanes and Heteroatom-Containing Analogues: Synthesis, Application, and Evaluation as Bioisosteres. [PDF]

Angew Chem Int Ed Engl
Natho P, Vicenti A, Mastrolorito F, De Franco F, Walsh-Benn L, Colella M, Mesto E, Schingaro E, Nicolotti O, Gioiello A, Luisi R.   +10 more
europepmc   +1 more source

Conformational Analysis of 1,3-Difluorinated Alkanes. [PDF]

J Org Chem
Poole WG, Peron F, Fox SJ, Wells N, Skylaris CK, Essex JW, Kuprov I, Linclau B.   +7 more
europepmc   +1 more source