亚砜磷的合成路线有哪些？

基本信息：中文名称 亚砜磷中文别名 内吸磷-S-甲基-亚砜;亚砜吸磷;砜吸磷;英文名称 oxydemeton-methyl英文别名 ;methylmercaptophos oxide;Oxydemetonmethyl;Metaisosystox sulfoxide;Metasystemox R;Aimco systox;S-[2-(ethanesulfinyl)ethyl] O,O-dimethyl phosphorothioate;O,O-dimethyl S-<2- (ethylsulfinyl)ethyl>phosphorothioate;Metasystemox;S-2-ethylsulfinylethyl O,O-dimethyl phosphorothioate;Methyl oxydemeton S;PO-methylsystox-sulfoxide;S-[2-(ethylsulfinyl)ethyl] O,O-dimethyl phosphorothioate;Metasystox-R;1-dimethoxyphosphorylsulfanyl-2-ethylsulfinylethane;thiophosphoric acid S-(2-ethanesulfinyl-ethyl) ester O,O'-dimethyl ester;CAS号 301-12-2合成路线：1.通过甲基内吸磷合成亚砜磷更多路线和参考文献可参考http://baike.molbase.cn/cidian/144844