Results 41 to 50 of about 14,856 (220)
Photo‐Degradable Polyester Networks and Multi‐Photon Printed Objects Based on Cyclic Ketene Acetals
Advanced Functional Materials, EarlyView.The current work introduces a photoreversible polyester network derived from radical ring‐opening polymerization of cyclic ketene acetals. It combines photoreversible cross‐linking with initiator‐free multi‐photon printing. Reversible network formation, tunable mechanical properties, and selective degradation highlight its potential as a versatile ...
Till Meissner +5 more
wiley +1 more source
MolbankThe cyclobutane ring has attractive properties as a scaffold in medicinal chemistry but is underused, potentially due to the limited methods available for synthesising highly functionalised cyclobutanes. This short note describes the synthesis of the 1,3-
Helen M. Sheldrake
doaj +1 more source
Synthetic studies towards d-modified paclitaxel analogues [PDF]
Journal of the Serbian Chemical Society, 2012 A synthetic sequence has been developed for the preparation of 9,10-O-diacetyl-4-desmethylene-4β-(3-butenyl)-4α-hydroxy-5-O-mesyltaxicin I-1,2-carbonate 3, an intermediate in the attempted synthesis of cyclobutane paclitaxel analogue.
Matović Radomir +2 more
doaj +1 more source
A biorenewable cyclobutane-containing building block synthesized from sorbic acid using photoenergy
iScience, 2022 Summary: A novel cyclobutane-containing diacid building block, CBDA-3, was synthesized from sorbic acid using clean, efficient [2 + 2] photocycloaddition.
Micah Mabin +4 more
doaj +1 more source
1,3-Bis(4-methylbenzoyl)-2,4-bis(2,4,5-trimethoxyphenyl)cyclobutane
IUCrData, 2017 The title compound, C38H40O8, possess an inversion centre at the centroid of the four-membered ring. The dihedral angle between the methylbenzene and trimethoxybenzene rings is 46.19 (8)°.
K. R. Raghavendra +5 more
doaj +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2020 Recrystallization of (E)-5-phenyl-1-(pyridin-2-yl)pent-2-en-4-yn-1-one at room temperature from ethylene glycol in daylight afforded [3,4-bis(phenylethynyl)cyclobutane-1,2-diyl)bis(pyridin-2-ylmethanone], C32H22N2O2 (3), while (E)-5-(4-methylphenyl)-1 ...
Ivan E. Ushakov +5 more
doaj +1 more source
IUCrJ, 2019 A three-dimensional hydrogen-bonded network based on a rare mok topology has been constructed using an organic molecule synthesized in the solid state. The molecule is obtained using a supramolecular protecting-group strategy that is applied to a solid ...
Shalisa M. Oburn +6 more
doaj +1 more source
Stereochemical Control in the Matteson Reaction
Chemistry – A European Journal, EarlyView.The Matteson homologation is a highly versatile method for the stereoselective insertion of carbenoids into boronic esters. Through iterative application of the process, complex chiral molecules can be synthesized. The stereoselectivity of the reaction is determined by a chiral diol incorporated in the boronic ester.
Hae Mo Lee, Christoph Hirschhäuser
wiley +1 more source
Synthesis of Novel Triazolo Cyclobutane Nucleoside Analogs [PDF]
, 2015 International audienceSynthesis of triazolo-cyclobutane nucleosides analogs is reported. These molecules have been obtained by a short and efficient sequence involving a click azide-alkyne cycloaddition following by cis-hydroxylation in the key step.
N.Thang Ngo +14 more
core +1 more source
Chemistry – A European Journal, EarlyView.Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua +3 more
wiley +1 more source