Results 101 to 110 of about 108,684 (302)
Synthesis of [9.10-b]-Phenanthrofuran via Ring Expansion of a Dichlorocyclopropane
CHIMIA, 1984 Base-induced elimination of the dichlorocarbene adduct 8 of 9-methoxyphenanthrene (7) give rise to the formation of the phe-nanthrofuran 9. A mechanism involving a cyclopropene-vinyl-carbene rearrangement (10-11) followed by intramolecular insertion ...
Paul Müller, Jean Pfyffer
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On the Mechanism of the Ring‐Expansion Polymerization of Thiiranes
Macromolecular Chemistry and Physics, 2011 AbstractRing polymers are synthesized using a cyclic bifunctional thioester as initiator for REP of thiiranes. PMT yields satisfactory results, whereas polymerization with MT appears to develop dead polymeric material as by‐product and TBMT gives only negligible conversion rates. The process produces high yields and high conversion rates.
Schuetz, Jan-Hendrik, Vana, Philipp
openaire +2 more sources
Molecular Oncology, EarlyView.BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi +11 more
wiley +1 more source
Ring-expansion cationic polymerization of vinyl ethers
, 2017 Ring-expansion cationic polymerization of vinyl ethers with a hemiacetal ester-embedded cyclic initiator allows precise syntheses of ring-based architectures due to the controlled propagation as well as the monomer pendant design.
Hajime Kammiyada +2 more
core +1 more source
Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae
FEBS Open Bio, EarlyView.Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj +3 more
wiley +1 more source
Advanced ScienceThe nitrogen‐heteroatom single bonds of 1,2‐azoles and isoxazolines underwent methylene insertion in the presence of CH2I2 (6 equiv.) and diethylzinc (3 equiv.) to produce a wide variety of the ring‐expanded six‐membered heterocycles.
Masato Tsuda +4 more
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Neuere Methoden zur Ringerweiterung organischer Verbindungen
CHIMIA, 1980 The actual interest in the construction of cyclic compounds via ring expansion reactions is demonstrated in the first chapter by means of typical examples.
Heinz Heimgartner
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FEBS Open Bio, EarlyView.CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point +7 more
wiley +1 more source
Ring Expansion of Bicyclic Ketones
, 1973 Several methods of ring expansions are reported in the literature. Ring expansion by the diazoalkane and Tiffeneau Demjanov method are two of the more important methods. These ring expansion methods have been investigated from several points of view such
Patel, Parmanand P.
core
Blocking-cyclization technique for precise synthesis of cyclic polymers with regulated topology
Nature Communications, 2018 Cyclic polymers can be usually accessed by ring-expansion and ring-closure approaches. Here, the authors report an alternative blocking-cyclization technique which enables the tunable synthesis of multicyclic polymers via commercial Ru-based Grubbs ...
Jie Chen +7 more
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