5274-61-3

Usage

InChI:InChI=1/C20H42O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-17-22-19-20-23-18-16-21/h21H,2-20H2,1H3

Upstream product

• 112-82-3 hexadecanyl bromide 
• 111-46-6 diethylene glycol 

Downstream Products

• 255906-34-4 toluene-4-sulfonic acid 2,3-bis-[2-(2-hexadecyloxy-ethoxy)-ethoxy]-propyl ester 
• 255906-30-0 {2,3-bis-[2-(2-hexadecyloxy-ethoxy)-ethoxy]-propoxymethyl}-benzene 
• 255906-47-9 toluene-4-sulfonic acid 3-hexadecyloxy-2-[2-(2-hexadecyloxy-ethoxy)-ethoxy]-propyl ester 
• 255906-44-6 {3-hexadecyloxy-2-[2-(2-hexadecyloxy-ethoxy)-ethoxy]-propoxymethyl}-benzene 
• 255906-28-6 toluene-4-sulfonic acid 2-(2-hexadecyloxy-ethoxy)-ethyl ester 

Relevant academic research and scientific papers

Combinatorial synthesis of PEG oligomer libraries

A simple chain-extending approach was established for the scale-up of the monoprotected monodisperse PEG diol materials. Reactions of THP-(OCH2CH2)n—OMs (n=4, 8, 12) with a large excess of commercially available H—(OCH2CH2)n—OH (n=1-4) under basic conditions led to THP-(OCH2CH2)n—OH (n=5-15). Similarly, Me-(OCH2CH2)n—OH (n=4-11, 13) were prepared from Me-(OCH2CH2)n—OMs (n=3, 7, 11). For the chain elongation steps, 40-80% yields were achieved through extraction purification. PEG oligomer libraries I and II were generated in 50-95% overall yields by alkylation or acylation of THP-(OCH2CH2)n—OH (n=1-15) followed by deprotection. Alkylation of Me-(OCH2CH2)n—OH (n=1-11, 13) with X—(CH2)m—CO2R (X=Br or OMs) and subsequent hydrolysis led to PEG oligomer library III in 30-60% overall yields. Combinatorial purification techniques were adapted to the larger-scale library synthesis. A total of 498 compounds, each with a weight of 2-5 g and a minimum purity of 90%, were synthesized.

2-picolylamine derivatives

The present invention relates to novel 2-picolylamine derivatives of general formula I STR1 wherein R1 represents an alkyl or phenylalkyl radical; R2 is hydrogen, C1 -C4 acyl or C1 -C4 alko

Microencapsulated agriculturally active material

Agriculturally active materials, such as pesticides, herbicides and the like and a process for microencapsulating said material. The present invention includes trifluralin having a polymorphic form characterized by a yellow color and a melting point of approximately 41°-43° C. The present invention also includes a method using the yellow polymorphic form of trifluralin as a herbicide. In addition, the present invention includes a method of microencapsulating low-melting agriculturally active materials, such as trifluralin. The microencapsulation process comprises the steps of heating a low-melting, water-immiscible, agriculturally active material to a molten state. The molten active material is then combined with an aqueous solution of a water-soluble, film-forming polymer at a temperature sufficient to maintain the active material in its molten state. The active material is then dispersed or emulsified in the aqueous solution so that the active material has a primary particle size of between approximately 0.1 and 10 microns. The resulting dispersion or emulsion is then spray dried at a temperature between approximately 50° and 220° C. so as to microencapsulate the active material in the polymer. Compounds for promoting the rapid solidification of the active material are also disclosed.