| 摘要 |
<p>The title cpds have the formula (where R1 = H or 1-4C alkyl, Rx = 0 to 3, substituents chosen from Cl, Br, I 1-6C alkyl gps. substd with one or more Cl and/or F atoms such that if Rx = 2 alkyl gps, these may be united by a ring closure. NH2 gps, opt. substd by 1 or 2 lower alkyl gps and 1-4C alkoxy gps such that if R=2 alkoxy gps, these may be united by a ring closure) or Rx = a phenoxy gp which may carry 1 or 2 of the substits halogen, 1-4C alkyl and 1-4C alkoxy). The cpd. N-phenylcarbamoyl-oxazolidine is excluded. Used as weed-killers.</p> |
