α-Phosphoryl sulfoxides. XI. Sulfenylation of α-phosphoryl sulfoxides and a general synthesis of optically active ketene dithioacetal mono-S-oxides
作者:Marian Mikołajczyk、Wanda H. Midura、Blanka Wladislaw、Francisco C. Biaggio、Liliana Marzorati、MichałW. Wieczorek、Jarosław Błaszczyk
DOI:10.1016/s0040-4020(96)01175-1
日期:1997.2
α-phosphoryl sulfoxides 1 with S-methyl methanethiosulfonate and phenylselenenyl bromide, respectively, affording α-methylsulfenyl- and α-phenylselenenyl-α-phosphoryl sulfoxides 8 and 9 are described. Sulfenylation of (+)-(S)-dimethoxyphosphorylmethyl p-tolyl sulfoxide 2 gave a mixture of optically active diastereoisomers of the sulfoxide 8a which is a key substrate in the Horner-Wittig synthesis of enantiomeric
硫基化和α -磷酰基亚砜的selenenylation 1与S-甲基methanethiosulfonate和苯硒基溴,分别得到α-methylsulfenyl-和α-苯硒基-α -磷亚砜8和9中描述。(+)-(S)-二甲氧基磷酰基甲基对甲苯基亚砜2的亚磺酰化得到了亚砜8a的旋光非对映异构体的混合物,这是对映体烯酮二硫缩醛单S-氧化物10的Horner-Wittig合成的关键底物。确定了10个几何异构体的比例并进行了简要讨论。E的晶体和分子结构报道了-1-对甲苯基亚磺酰基-1-甲基亚磺酰基-2-苯基-乙烯10a。