Results 11 to 20 of about 108,684 (302)
Ring expansion of a ring expanded carbene
Dalton Transactions, 2017 Reaction of phenylsilane with the ring expanded carbene 6-Mes results in facile Si–H oxidative addition to the carbenic carbon at room temperature and ring opening on heating.
Lucía García +5 more
openaire +4 more sources
, 2020 The broad synthetic utility of organoboron compounds stems from their ready ability to undergo 1,2-migrations. Normally, such shifts are induced by α-leaving groups or by reactions of alkenyl boronates with electrophiles.
Durga Prasad Hari (1492315) +3 more
core +3 more sources
Study on contact angle of double-decker bearing with consider of centrifugal expansion [PDF]
E3S Web of Conferences, 2021 Improving the precision of numerical calculation of double-decker bearing is the basis of exploring its potential application value. This paper takes double-decker bearing as the research object, a modified quasi-statics model of double-decker bearing ...
Hu Jing +5 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2023 A series of imidazo[4,5-e][1,3]thiazino[2,3-c][1,2,4]triazines was synthesized via a cascade sequence of hydrolysis and skeletal rearrangement of imidazo[4,5-e]thiazolo[2,3-c][1,2,4]triazin-7(8H)-ylidene)acetic acid esters in methanol upon treatment with
Dmitry B. Vinogradov +4 more
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A Ring-Expansion Approach to Roseophilin [PDF]
Organic Letters, 2005 [reaction: see text] Preparation of a cyclopentenone-fused pyrrolophane, which serves as a model for the tricyclic core of roseophilin (1), is described. The synthetic scheme features a palladium-catalyzed annulation and oxidative cleavage sequence to provide a macrocyclic ketoester (17).
Samuel G, Salamone, Gregory B, Dudley
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, 2022 Seven-Membered polycyclic architectures, widely present in natural products and small molecular drugs, are challenging synthetic targets. So far, methods for synthesizing fused medium-sized bicyclo[m.n.0] ring systems, including the benzocycloheptane ...
Bowen, Fang +4 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2020 Thietanes are important aliphatic four-membered thiaheterocycles that are found in the pharmaceutical core and structural motifs of some biological compounds. They are also useful intermediates in organic synthesis. Various synthetic methods of thietanes
Jiaxi Xu
doaj +1 more source
Plate-impact-driven ring expansion test (PIDRET) for dynamic fragmentation [PDF]
EPJ Web of Conferences, 2021 A new experimental set-up mounted at the muzzle of a singlestage gas gun has been designed in order to study the fragmentation of metallic rings under dynamic radial expansion.
Gant Fanny +4 more
doaj +1 more source
An isoxazole strategy for the synthesis of 4-oxo-1,4-dihydropyridine-3-carboxylates
Beilstein Journal of Organic Chemistry, 2022 A method has been developed for the preparation of 2-alkyl-6-aryl-, 2-aryl-6-aryl and 2,6-diaryl-5-aryl/hetaryl-substituted methyl 4-oxo-1,4-dihydropyridine-3-carboxylates by Mo(CO)6-mediated ring expansion of methyl 2-(isoxazol-5-yl)-3-oxopropanoates ...
Timur O. Zanakhov +3 more
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Molecules, 2010 The synthesis of the tetracyclic molecule 2-(9,10-dihydro-9,10-propano-anthracen-9-yl)-N-methylethanamine(2)as a homologue of the antidepressant 1-(9,10-dihydro-9,10-ethanoanthracen-9-yl)-N-methylmethaneamine (1) was described.
Usama Karama +3 more
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