Guayule

Uses

2-(3,4-Dichlorophenoxy)ethyl diethylamine, commonly known as yield-increasing amine (DCPTA), was first discovered by American chemical researchers in 1977. It is a high-performance plant growth regulator that has shown significant yield-increasing effects on many agricultural crops and can improve fertilizer utilization and increase crop stress resistance.

Chemical Properties

White Powder

Definition

A rubberlike hydrocarbon, almost identical with cis-polyisoprene, obtained from a shrub that is a member of the Compositae family. It is grown extensively in Mexico and the southwestern U.S. It contains approximately 15% rubber hydrocarbon in the form of

Production Methods

Commercial production of DCPTA, typically begins with the synthesis of 3,4-dichlorophenol, which is then reacted with 2-chloro-N,N-diethylethanamine through a nucleophilic substitution process. This reaction forms the ether linkage between the phenoxy group and the ethylamine chain. The process is carried out under controlled conditions using organic solvents and a base to facilitate the substitution, followed by purification steps such as crystallisation or distillation to isolate the final compound.

Mechanism of action

Absorbed by stems and foliage. Substance has been shown to improve photosynthesis, increasing chlorophyll, plant sugar and starch content.

Pesticide Type

Plant Growth Regulator