rearrangement相关论文
Ynamides are electron-rich alkynes with unique reactivities and act as flexible building blocks in organic synthesis.The......
Sequence-based ultra-dense genetic and physical maps reveal structural variations of allopolyploid c
SNPs are the most abundant polymorphism type,and have been explored in many crop genomic studies,including rice and maiz......
Base-catalyzed Rearrangement of 5-Propargyl-2H-thiopyran-4(3H)-ones: An Atom-economic Route to Dense
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Synthesis of N-(2-hydroxyaryl)-Benzotriazoles via Metal-free O-arylation and [3,3]-Rearrangement Pro
N-Arylbenzotriazoles are one of the most important classes of N-heterocycles in biological,pharmaceutical and medicinal ......
Synthesis of Spirofluorenylpiperidin-4-ones via Cycloaddition and [1,3]-Rearrangement of N-Aryl Fluo
Spirofluorenylpiperidinone is one new class of potent valuable compound because 9-fluorenyl derivatives have been identi......
Synthesis of Benzofuranacetamides through Chan-Evans-Lam Reaction of N-Aryloxyacetamides and Alkenyl
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The rational modulation of electronic structure is highly desirable to develop an efficient alkaline hydrogen evolution ......
Four types of unprecedented and chemodivergent reactions betweenα-diketones and alkynylα-diketones have been achieved ......
Background:Endotoxin tolerance(ET)is a protective phenomenon in which pre-treatment with a tolerance dose of lipopolysac......
Nitrones are not only widely recognized as important building blocks in the synthesis of various natural and biologi......
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Intramolecular Cross-Cycloadditons of Cyclopropane 1,1-diesters for Construction of Bridged and Medi
Bridged and medium-sized skeletons constitute the basic ones of many important biologically active natural products.......
Converting Co^(2+)-impregnated g-C_(3)N_(4)into N-doped CNTs-confined Co nanoparticles for efficient
The cyclopentanone and derivatives are a class of crucial fine chemicals for various industries and currently produced b......
THE EFFECT OF RADIATION DOSE RATE ON THE FREQUENCY OF CHROMOSOME ABERRATIONS INDUCED IN HUMAN LEUCOC
<正> The dose rate effect of radiation genetics has been studied intensively because of its practical as well as theoret......
<正> T. Otsu and S. Kubota had studied the polymerization of acrylonitrile （AN） and other vinyl monomers cataylzed by tita......
Sequence and modified group analysis on C-terminal modified analogs of endomorphin-2 using electrosp
In this paper, a series of C-terminal modified analogs of endomorphin-2 is investigated using ESI-FT-ICR-MS. Some b, y″......
From readily available propargylic carboxylates, two sequential transformations―gold-catalyzed tandem reactions and Sc(......
An efficient green protocol for the preparation 3,4,6-trisubstituted 2-pyridone of employing a condensation reaction of ......
One novel porphyrin P-Q2 is planned to be synthesized by condensation between ATPP and Q1.However,after separation by ch......
Project“Engineering Development of New Technology for Gas-Phase Beckmann Rearrangement of Cyclohexan
On November 6,2009 the project “Engineering development of new technology for gas-phase Beckmann rearrangement of cyclo......
Silacycles play a very important role in modern organic chemistry and materials science.Construction of silacyclic skele......
The effect of cation size(H~+, Li~+, Na~+, and K~+) on McLafferty-type rearrangement of even-electro
Protonation and alkali-metal cation adduction are the most important ionization processes in soft-ionization mass spectr......
A novel synthetic approach to(?)-Z-recifeiolide 6, a 12-membered-ring lactone which can be selectively isomerized into(E......
The benzyl-substituted flavone compounds are rare in nature, while some of which have interesting biological activities.......
An effcient formal synthesis of(+)-tashiromine was achieved by employing an intermolecular asymmetric Mannich-type react......
Stereoselective construction of skipped polyol enabled by oxonia-Cope rearrangement and iodolactoniz
Skipped polyol is a common motif in numerous biologically significant polyketides and has been the focus of the developm......
Use of liquid crystal to study the interactions of alkyl polyglycosides with gelatin and bovine seru
In this study, liquid crystal(LC) was used to study the interactions of alkyl polyglycosides(APG) with gelatin and bovin......
A new nucleophilic 1,3-rearrangement is observed when treating 2-methoxyquinolino-3-lithium with an α-C substituted deo......
I_2/K_2CO_3-promoted ring-opening/cyclization/rearrangement/aromatization sequence:A powerful strate
An efficient and straightforward synthetic method has been developed for the preparation of 4-cyanofuran-3-carboxylate d......
First total synthesis of cajanolactone A and cajanonic acid A has been achieved through steps of anion–anion condensati......
Dissolved Silica Adsorbed onto MnO_2 in Catalyzing the Decomposition of H_2O_2: Molecular Structural
It has been generally unclear over the mechanism of inhibitory influence of silicate on structural rearrangement or sole......
Lending a hand to asymmetric trifluoromethylthiolation:enantioselective [2,3]-sigmatropic rearrangem
The introduction of a trifluoromethanesulfenyl group(SCF3)into organic molecules can,in principle,significantly enhance ......
Rapid construction of the unique BCD ring system of tricyclo[6.2.1.0] undecane in the C_(19)-diterpe
A model study leading to the preparation of the unique tricyclo [6.2.1.0] undecane BCD ring systems of aconitine is desc......
Several polystyrene-supported selenides and selenoxide have been prepared firstly. These novel reagents were treated wit......
InCl3 catalyzes the reaction of hydroxylamine hydrochloride with a number of aldehydes and ketones under solvent free co......
A detail study on the Eu(fod)_3-catalyzed rearrangement of al-lylic esters was described. A significant effect of the s......
Cleavage of the Fe-Fe Bond of(Me_2SiSiMe_2)[η~5-C_5H_4Fe(CO)_2]_2 with Na/Hg and Molecular Structure
The reaction of the title cyclic complex(1) with sodium amal-gam in THF resulted in the expected cleavage of the Fe--Fe......
Catalytic Asymmetric[2,3]-Sigmatropic Rearrangement of Sulfur Ylides Generated from Carbenoids and A
The first investigation on catalytic asymmetric [2, 3]-sigmatrop-ic rearrangement of sulfur ylides generated from carbe......
Silica sulfuric acid in which sulfuric acid is immobilized on the surface of silica gel via covalent bond has been prove......
In a systematic study of the reactions between allylic esters of hetero-atom acids andlow valent transition metal compl......
山道年胺(Ⅱ,R=H)或7-羟基山道年胺(Ⅱ,R=OH)变成α-(1,4-双甲基-5-羟基-5,6,7,8-四氢萘)-6-丙酸内酯(hyposantonin)(Ⅲ,R=H)或α-......
Syntheses of salvilenone and related compounds——Ⅱ.A novel rearrangement of a tetrahydrophenalenone t
The reaction of isopropenyl carbinol(2)with aqueous hydrobromic acid and hydroiodic-acid gave salvilenone(1)and naphtho......
Mass spectra of Roussinate anions in K+, Me4N+ and Bu4N+ salt have been obtained under appropriate operating conditions......
(-)-curdione,the antipode of the antitumor principle of Chinese herb Curcuma aromticaSalisb.was synthesized from(-)-car......
The rearrangement of the C_(20),C_(22)-epoxide(3a)catalyzed by BF_3·Et_2O was investigated.The structures of 10 produc......
STUDIES ON PHOTOOXIDATION (Ⅲ)——ELECTRON TRANSFER PHOTOOXIDATIONS OF 2-ALKYL-SUBSTITUTED DIPHENYLETHY
The photooxidations of 2-alkyl-1, 1-diphenylethylenes 1a-1c （Ph<sub>2</sub>C=CHR, R=Me,Et,Pr）sensitized by electron-defici......
The reactions of tetrafluoroethylene oligomers V.The reactions of perfluoro-3,4-dimethy1-4-ethylhexe
The reactions of perfluoro-3,4-dimethyl-4-ethylhexene-(2)(1)with s-nucleophiles suchas benzylthiol,allylthiol,phenylthi......
