| 摘要 |
NEW MATERIAL:An N-substituted-4-phenylthiazolin-2-one compound of formula I (R is H, acetyl, lower alkyl; R' is H, acetyl, benzoyl, methylbenzoyl, or chlorobenzoyl; R and R' may form phthalimide across N). EXAMPLE:N-(2-Methylbenzoyl)-N-acetylamino-4-phenylthiazolin-2-one. USE:A repellent of organisms in water. PREPARATION:3-Amino-4-phenylthiazolin-2-one of formula II obtained by the reaction of Na salt of hydrazinethiol carbamate with phenacyl bromide, is reacted with a compound of formula R'-X(X is halogen) to produce the compound of formula III, which is reacted with the compound of formula R-X, to give the object compound of formula I. |
