cas 16192-07-7, PROPARGYL P-TOLUENESULFONATE

Articles about 16192-07-7Total 9 be found

Creating Dynamic Nanospaces in Solution by Cationic Cages as Multirole Catalytic Platform for Unconventional C(sp)?H Activation Beyond Enzyme Mimics
Herein we demonstrate that, based on the creation of dynamic nanospaces in solution by highly charged positive coordination cage of [Pd6(RuL3)8]28+, multirole and multi-way cage-confined catalysis is accomplisha
Li, Kang,Wu, Kai,Lu, Yu-Lin,Guo, Jing,Hu, Peng,Su, Cheng-Yong
supporting information

(2021/12/14)

Efficient synthesis of aliphatic sulfones by Mg mediated coupling reactions of sulfonyl chlorides and aliphatic halides
Sulfonyl chlorides were reduced to anhydrous sulfinate salts with magnesium under sonication. These sulfinates were alkylated to sulfones with alkyl chlorides in the presence of catalytic sodium iodide under sonication. A variety of aliphatic sulfones was efficiently prepared by this one-pot two-step procedure.
Fu, Ying,Xu, Qin-Shan,Li, Quan-Zhou,Du, Zhengyin,Wang, Ke-Hu,Huang, Danfeng,Hu, Yulai
supporting information
p. 2841 - 2845
(2017/04/03)

INHIBITORS OF HEPATITIS C VIRUS
A class of compounds that inhibit Hepatitis C Virus (HCV) is disclosed, along with compositions containing the compound, and methods of using the composition for treating individuals infected with HCV.
-
Page/Page column 181

(2012/05/19)

Abnormal behaviour of allenylsulfones under Lu's reaction conditions: Synthesis of enantiopure polyfunctionalised cyclopentenes
Formal [3+2] cycloadditions of 5-alkoxyfuran-2(5H)-ones 1 and 2 with allenylsulfones 3-5, promoted by different nucleophiles, afford 3-alkoxy5-arylsulfonyl-3,3 a,6,6 a-tetrahydro-1Hcyclopenta[c]furan-l-ones in good yields with complete control of both regio- and π-facial selectivity. The incorporation of a sulfinyl group on the furanone ring enhances the reactivity of the furanones and allows the synthesis of optically pure, bicyclic adducts in good yields. Allenylsulfones evolve through a different mechanism to that proposed for allenoates (Lu's reaction) and afford bicyclic adducts in which the sulfonyl group is joined to C-5. This has advantages on the stereochemical control of further reactions leading to enantiomerically pure polyfunctionalised cyclopentenes and cyclopentanes.
Nunez Jr., Alberto,Rosario Martin,Fraile, Alberto,Garcia Ruano, Jose L.
scheme or table
p. 5443 - 5453
(2010/10/03)

Synthesis of thiophenes from allenyl sulfones involving α,β-unsaturated sulfines as intermediates
The synthesis of thiophenes starting from allenyl sulfones, via intermediate formation of α,β-unsaturated sulfines, is described.The allenyl sulfones were synthesized by a -sigmatropic rearrangement of appropriately substituted prop-2-ynyl sulfinates
Linden, Johannes B. van der,Asten, Peter F. T. M. van,Braverman, Samuel,Zwanenburg, Binne
p. 51 - 60
(2007/10/02)

Homolytic Displacement at Carbon. Part 3. First Example of α-Attack on the Allenyl- and Prop-2-ynyl-cobaloximes
Allenylcobaloxime reacts with substituted benzenesulphonyl chlorides in an inert atmosphere under irradiation with tungsten lamps to give good yields of allenyl sulphones.However, the same reactions carried out in Srinivasan's photoreactor using a 400 W medium-pressure mercury lamp or under thermal conditions give exclusively prop-2-ynyl sulphones, by regiospecific rearrangement, in good yields.The corresponding reactions of (3,3-disubstituted allenyl) cobaloximes afford 1,1-disubstituted prop-2-ynyl sulphones irrespective of the conditions used.Similarly, prop-2-ynyl sulphones are formed exclusively in the reactions of prop-2-ynylcobaloxime with organosulphonyl chlorides under thermal and photochemical conditions.The reactions are believed to take place through a chain mechanism in which cobaloxime(II), present adventitiously or formed by partial homolysis of the substrate cobaloxime, abstrscts a chlorine atom from the organosulphonyl chloride to give the organosulphonyl radical RSO2.Depending upon the reaction conditions and the nature of cobaloxime, RSO2 attacks the α- or the γ-carbon atom of the axial organic group of the cobaloxime, thereby displacing cobaloxime(II) and giving the observed organic product.
Gupta, B. Dass,Roy, Sujit
p. 1377 - 1384
(2007/10/02)

HYDRATION OF 1- AND 3-ARYLSULFONYL-1-PROPYNES AND ARYLSULFONYLALLENES
The reactions of isomeric 1- and 3-arylsulfonyl-1-propynes and arylsulfonylallenes with primary aromatic amines in organic solvent-water system lead to arylsulfonyl-2-propanones.Unstable addition products (enamines) are formed in the reaction and then undergo hydration and are transformed into the ketones.
Mikhailova, V. N.,Bulat, A. D.,Yurevich, V. P.,Ezhova, L. A.
p. 1756 - 1759
(2007/10/02)

HOMOLYTIC DISPLACEMENT AT CARBON: FIRST EXAMPLE OF α-ATTACK IN THE ALLENYL AND PROPARGYL COBALOXIMES
The reactions of allenyl and propalgyl cobaloximes with organosulphonyl chlorides under anaerobic and photochemical conditions form sulphones by a novel homolytic attack at the α carbon to the metal.
Gupta, B.D.,Roy, Sujit
p. 4905 - 4908
(2007/10/02)

Mass Spectral Rearrangements of 3-Arylsulphonyl-2-arylthiopropenes and N-(4'-Arylsulphonyl-2'-butynyl)-N-(4"-arylthio-2"-butynyl)anilines
Under electron impact the title compounds undergo skeletal rearrangement in the addition to the anticipated modes of cleavage.The 3-arylsulphonyl-2-arylthiopropenes readily eliminate sulphur dioxide.Other modes of fragmentation include rearrangement to a
Glaspy, P. E.,Hancock, R. A.,Thyagarajan, B. S.
p. 281 - 287
(2007/10/02)