13603-90-2Relevant academic research and scientific papers
Sulfinate-Organocatalyzed (3+2) Annulation of Allenyl Sulfones with 1,1-Dicyano Olefins in the Presence of a Quaternary Ammonium Phase Transfer Agent
Martzel, Thomas,Lohier, Jean-Fran?ois,Gaumont, Annie-Claude,Brière, Jean-Fran?ois,Perrio, Stéphane
supporting information, p. 2696 - 2706 (2018/07/29)
The benzenesulfinate-catalyzed (3+2) annulation between allenyl sulfones and aryl(alkyl)idenemalononitriles has been developed under mild phase transfer conditions, affording a breadth of functionalized sulfonyl cyclopentenes in good to excellent yields (
Unique Reactivity of α-Substituted Electron-Deficient Allenes using Sulfinate Salts as Lewis Base Organocatalysts
Martzel, Thomas,Lohier, Jean-Fran?ois,Gaumont, Annie-Claude,Brière, Jean-Fran?ois,Perrio, Stéphane
supporting information, p. 96 - 106 (2017/01/14)
The efficient sulfinate-catalyzed intermolecular addition reaction of α-substituted allenyl sulfones and allenoates with Michael acceptors is highlighted. The sequence proceeds under mild conditions to provide a scalable and efficient access to versatile
Highly regio- and stereoselective palladium(0)-catalyzed addition of organoboronic acids with 1,2-allenic sulfones, sulfoxides, or alkyl- or aryl-substituted allenes in the presence of acetic acid: An efficient synthesis of E-alkenes
Guo, Hao,Ma, Shengming
, p. 2731 - 2745 (2008/03/13)
Two sets of reaction conditions were established to enable the palladium(0)-catalyzed addition of organoboronic acids with 1,2-allenic sulfones, sulfoxides, or alkyl- or aryl-substituted allenes in the presence of acetic acid. This reaction provides a new
Stereochemical studies of the palladium-catalyzed rearrangements of chiral 2-alkynyl sulfinates into chiral allenyl sulfones
Hiroi, Kunio,Kato, Fumiko
, p. 1543 - 1550 (2007/10/03)
Palladium-catalyzed reactions of diastereomerically pure chiral 2-alkynyl p-toluenesulfinates under very mild reaction conditions gave both enantiomers of optically active sulfonyl allenes in good yields with high stereospecificity. The stereochemistry of this transformation with the assistance of a palladium catalyst was determined. The conversion rate was measured by the HPLC analysis in accordance with the elapse of the reaction time, and the rather marked difference of the rate was observed between the diastereomeric sulfinates. A novel mechanism for this transformation with palladium catalysts is proposed.
Free-Radical Chain Substitution Reactions (SH2') of Alkenyl-, Alkynyl-, and (Alkenyloxy)stannanes
Russell, Glen A.,Herold, Lourdes Lucas
, p. 1037 - 1040 (2007/10/02)
Free-radical chain substitution reactions of allyltributylstannane were observed with PhSSPh, PhCH2SSCH2Ph, PhSeSePh, PhSO2Cl, n-PrSO2Cl, or CCl3SO2Cl, where the attacking radicals leading to allylic rearrangement with displacement of Bu3Sn(radical) were PhS(radical), PhCH2S(radical), PhSe(radical), PhSO2(radical), n-PrSO2(radical), and CCl3(radical), respectively.Allylic rearrangement was also observed in the SH2' reaction of crotyltributylstannane with PhSSPh, PhCH2SSCH2Ph, PhSO2Cl, or n-PrSO2Cl.Propargyltriphenylstannane underwent SH2' substitution to form the allenic substitution products with PhSO2Cl, n-PrSO2Cl, CCl4, and CHCl3 while 2-butynyltriphenylstannane formed the 1,2-butadiene with PhSO2Cl or n-PrSO2Cl.Reaction of (1-cyclohexenyloxy)tributylstannane with CCl4 or BrCCl3 formed α-(trichloromethyl)cyclohexanone.With HCBr3 the initially formed α-(dibromomethyl)cyclohexanone readily underwent dehydrobromination to form α-(bromomethylene)cyclohexanone. tributylstannane formed α-(trichloromethyl)isobutyraldehyde with CCl4 or BrCCl3.Reaction with HCBr3 gave a mixture of α-(dibromomethyl)isobutyraldehyde and 1-(dibromomethyl)-2,2-dimethyloxirane.
