75712-32-2Relevant academic research and scientific papers
STEREOSELECTIVE SYNTHESIS OF (E)-ALKENYLSILANES FROM ALDEHYDES WITH A REAGENT PREPARED BY CHROMIUM(II) REDUCTION OF Me3SiCHBr2
Takai, Kazuhiko,Kataoka, Yasutaka,Okazoe, Takashi,Utimoto, Kiitiro
, p. 1443 - 1446 (1987)
Aldehydes are converted to the corresponding (E)-alkenylsilanes with one carbon homologation by means of a gemdichromium reagent prepared by CrCl2 reduction of Me3SiCHBr2 in THF.Transformation of aldehydes into alkenyl sulfides is also achieved with a com
Thiol mediated 5-(π-endo)ortho vinyl radical cyclizations
Montevecchi, Pier Carlo,Navacchia, Maria Luisa
, p. 201 - 219 (2007/10/03)
The radical reaction of benzenethiol with alkynes 1a-o carried out at 154 °C affords a mixture of thiol/alkyne adduct 3 and benzothiophene 5, deriving from vinyl radical intermediates 2 through hydrogen abstraction and 5-(π-endo)(orthocyclization onto the
Radical Carbonylation of Alkynes in the Presence of Thiols
Nakatani, Shogo,Yoshida, Jun-ichi,Isoe, Sachihiko
, p. 880 - 881 (2007/10/02)
Treatment of alkynes with thiols under an atmosphere of carbon monoxide initiated by azobis(isobutyronitrile) (AIBN) gives β-alkylthio-α,β-unsaturated aldehydes.
MONOALKYLATION AND MONOPHENYLATION OF ISOPROPYLTHIOPHENYL METHYL SELENIDES AND 2-PHENYLTHIOETHENYL METHYL SELENIDES WITH GRIGNARD REAGENTS PROMOTED BY LOW-VALENT NICKEL SPECIES. REGIO- AND STEREOSELECTIVE CLEAVAGE OF THE CARBON-SELENIUM BOND
Tingoli, Marco,Tiecco, Marcello,Testaferri, Lorenzo,Chianelli, Donatella
, p. 59 - 61 (2007/10/02)
The substitution of the methylselenium group in different (isopropylthio)phenyl and (phenylthio)ethenyl methyl selenides by alkyl and phenyl groups, through Grignard reaction mediated by phosphino-ligated nickel species, is described.In all cases this substitution occurs smoothly and at a rate which is fast enough to leave the C-S bond unaffected.In the olefinic series the use of a bidenate phosphine ligand on the nickel catalyst is required to promote the stereocontrolled cleavage of the C-Se bond in the case of the Z isomers.
A STEREOSELECTIVE ROUTE TO ALKENYL SULFIDES THROUGH THE PALLADIUM-CATALYZED CROSS-COUPLING REACTION OF 9-ALKYL-9-BBN WITH 1-BROMO-1-PHENYLTHIOETHENE OR (E)- AND (Z)-2-BROMO-1-PHENYLTHIO-1-ALKENES
Hoshino, Yukio,Ishiyama, Tatsuo,Miyaura, Norio,Suzuki, Akira
, p. 3983 - 3986 (2007/10/02)
The reaction of 9-alkyl-9-BBNs with 1-bromo-1-phenylthioethene or (E)- and (Z)-2-bromo-1-phenylthio-1-alkenes takes place readily in the presence of Pd(PPh3)4 and sodium hydroxide to afford stereodefined vinylic sulfides in exellent yields.
Synthesis of vinyl sulphides, azido sulphides, and olefins from β-hydroxy-sulphides
Dumont, Willy,Krief, Alain
, p. 673 - 675 (2007/10/02)
Vinyl sulphides, azido sulphides, and olefins have been prepared from β-hydroxy-sulphides via β-chloro-sulphides; the regio- and stereo-chemistry of these reactions is discussed.
