申请人:Uniroyal, Inc.
公开号:US03947263A1
公开(公告)日:1976-03-30
Plant growth regulant effects, such as dwarfing, cessation of terminal growth, increased flower set, increased fruit and pod set, fruiting body abortion, twisting and epinastic responses, etc., may be accomplished on crops such as soybeans, cotton, etc., by application of certain 2-(1,3,4-oxadiazol-2-yl) or 2-(2-oxazolyl) or 2-(1,3,4-thiadiazol-2-yl)benzoic acids, salts and esters, having the formula ##SPC1## Where X is nitrogen or C--R" (R" being hydrogen or methyl), Z is oxygen or sulfur when X is nitrogen, Z is oxygen when X is C--R", R is phenyl or various substituents, and R' is hydrogen or various substituents. An example is 2-(5-phenyl-1,3,4-oxadiazol-2-yl)benzoic acid. The compounds where X is nitrogen and Z is sulfur are new compounds, e.g., 2-(5-phenyl-1,3,4-thiadiazol-2-yl)benzoic acid.
植物生长调节剂的效果,如矮化、终止生长、增加花朵结实、增加果实和荚果结实、果实萎缩、扭曲和上翘反应等,可以通过应用某些2-(1,3,4-噁唑-2-基)或2-(2-噁唑基)或2-(1,3,4-噻唑-2-基)苯甲酸、盐和酯在大豆、棉花等作物上实现,其化学式为##SPC1##其中X为氮或C--R"(R"为氢或甲基),Z为氮时为氧或硫,Z为C--R"时为氧,R为苯基或各种取代基,R'为氢或各种取代基。例如2-(5-苯基-1,3,4-噁唑-2-基)苯甲酸。其中X为氮,Z为硫的化合物是新化合物,例如2-(5-苯基-1,3,4-噻唑-2-基)苯甲酸。