發送短信

數:

提供者:

CAPTCHA:

   _____   __   __    _  _    _    _             
  / ___//  \ \\/ //  | \| || | || | ||     ___   
  \___ \\   \ ` //   |  ' || | || | ||    /   || 
  /    //    | ||    | .  || | \\_/ ||   | [] || 
 /____//     |_||    |_|\_||  \____//     \__ || 
`-----`      `-`'    `-` -`    `---`       -|_|| 
                                            `-`

Please enter what you see:

發送短信 : Amino/alkoxycarbonylation of aryl halides mediated by group VI metal carbonyl complexes