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Propane, 1-Iodo

Selective C-alkylation of the Na[CH(N02)SC>2Ph] salt with l-chloro-3-iodo-propane (Eq. 2) followed by cyclization of product (39b) was documented (70). [Pg.461]

Better results were obtained using (5)-tetrahydro-3-furanyl group as an auxiliary. Regiocontrol and diastereoselectivity improved especially on alkylation with the bulkier 2-iodo-propane in diethyl ether to give 3-isopropyl-2-[(S)-tetrahydro-3-furanyloxy]-l,4-cyclohexadi-ene (2, R1 = 2-propyl) (yield -90% d.r. 80 20). [Pg.682]

Bromofluoroalkanes can be converted into the 2-bromo isomers with ACF and HFP, but only with low conversion. In contrast, heptafluoro-l-iodo-propane (17) transforms quantitatively into the 2-iodo isomer 18.28... [Pg.166]

Sulfonyl Chloride IlexafUioro-3-iodo-propane ElOb,. 610 (1 - S02 Cl)... [Pg.594]

Examples are the preparation of pentafluoroiodoethane (I) and heptafluoro-2-iodo-propane (2). [Pg.343]

Ethyl iodide, lodo ethane. Propyl iodide, i-Iodo propane. Iso-propyl iodide, 2-lodo propane. [Pg.51]

The mixed halogens ICl, IBr, and BrCl also add to alkenes. White and Robertson found third-order kinetics for the reaction and determined the relative reactivities to be BrCl > ICl > Br2 > IBr > l2- The l ge reactivity of BrCl means that addition of BrCl can occur when alkenes react with mixtures of Br2 and Cl2. The regioselectivity of addition of mixed halogens was reported by Ingold and Smith. Addition of ICl to propene gave 69% of 2-chloro-l-iodo-propane (30) and 31% of l-chloro-2-iodopropane (31), and addition to styrene gave more than 95% of l-chloro-2-iodo-l-phenylethane. ... [Pg.584]

Chiral (E)-enolethers. A degassed soln. of (5R)-5-cyclohexyl-2-ethenyl-l,3-dioxolan-4-one (2 1 cisjtrans) in THF added to ca. 1 eq. of a suspension of bis(l,5-cycloocta-diene)nickel(0) in the same solvent under N2, stirred until the complex dissolved (10 min), after 3h the resulting rust-coloured precipitate collected, suspended in methylene chloride, treated with MejSiCl, and stirred for 30 min intermediate 7c-allylnickel complex (Y 78%), in benzene treated with DMF and 5 eqs. 1-iodo-propane, irradiated with a sunlamp (GE 275 W Model RSW) for 2,5 h at 10°, stirred for a further 3 h, diluted with pentane to precipitate nickel halide, and stirred for a further 4 h product (Y 82% E/Z 9 1). Subsequent treatment with acetals afforded 2-p-alkoxy-l,3-dioxolan-4-ones with asym. induction, thereby providing an alternative to asym. aldol condensation. F.e. inch reaction with ar. and a,P-ethylene-bromides s. D.J. Krysan, P.B. Mackenzie, J. Am. Chem. Soc. 110, 6273 (1988). [Pg.172]


See other pages where Propane, 1-Iodo is mentioned: [Pg.145]    [Pg.21]    [Pg.24]    [Pg.321]    [Pg.471]    [Pg.185]    [Pg.140]    [Pg.140]    [Pg.19]    [Pg.122]    [Pg.122]    [Pg.114]    [Pg.114]    [Pg.44]    [Pg.49]    [Pg.50]    [Pg.602]    [Pg.631]    [Pg.631]   


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