In the presence of a catalytic amount of dichlorotris(triphenylphosphine)ruthenium(II), the reactions of arenesulfonyl chlorides with allylphenyl sulfide and allylphenyl selenide proceeded smoothly to give allylphenylsulfone in high yield as well as the corresponding diphenyl disulfide or diphenyl diselenide. An SH2′-type mechanism involving the arenesulfonyl radical is proposed.
Thermal and photochemical reactions of allylcobaloximes with para-substituted benzenesulphonyl chloride under aerobic and anaerobic conditions
作者:Sujit Roy、B.D. Glipta、Sumita Chaklanobis
DOI:10.1016/0022-328x(84)80297-1
日期:1984.7
The compounds p-XC6H4SO2Cl (X = Cl, Br, I, OMe) react regiospecifically with allyl-, 2-methylallyl-, 3-methylallyl- and 3,3-dimethylallyl-cobaloximes under thermal and photochernical conditions. A rearrangedorganic product is obtained in each case. The yields are much better in photochemical reactions. A chain mechanism is involved in which the organosulphonyl radical and cobaloxime(II) are the chain
化合物p -XC 6 H 4 SO 2 Cl(X = Cl,Br,I,OMe)在热和光化学条件下与烯丙基-,2-甲基烯丙基-,3-甲基烯丙基-和3,3-二甲基烯丙基-钴肟发生区域特异性反应。 。在每种情况下均获得了重排的有机产物。在光化学反应中产率要好得多。涉及链机理,其中有机磺酰基和钴肟(II)是链增长的物质。当反应在氧气存在下进行时,砜的产率会大大降低。
Synthesis of aromatic and heteroaromatic unsaturated sulfones using palladium complex catalysts