Publication

Trans,trans-8,10-Dodecadien-1-yloxysilanes as pesticides

Manfred Schlosser
1986
Patents

Abstract

MeCH:CHCH:CH(CH2)6CH2SiR1R2R3 [I; R1, R2 = C1-6 alkyl; R3 = C16 alkyl, Ph], useful as pesticides, are prepd. by treating trans,trans-8,10-dodecadien-1-ol (II) with ClSiR1R2R3 at 10-60 Deg in the presence of a proton acceptor. Thus, 18.2 g II, 17.5 mL Me3SiCl and 50 mL Et3N were kept at 25 Deg in Et2O for 15 h to give I (R1-3 = Me) which captured 148 adult male Laspeyresia pomonella over a 78 day period when tested as a sexual pheromone and applied to apple trees in a glue-based dispenser contg. up to 10 mg I. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/39eb0bae-596d-4c40-8a67-f296c66230a1

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Manfred Schlosser
1986
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/39eb0bae-596d-4c40-8a67-f296c66230a1

About this result

Related concepts (5)

Base (chemistry)

In chemistry, there are three definitions in common use of the word "base": Arrhenius bases, Brønsted bases, and Lewis bases. All definitions agree that bases are substances that react with acids, as originally proposed by G.-F. Rouelle in the mid-18th century. In 1884, Svante Arrhenius proposed that a base is a substance which dissociates in aqueous solution to form hydroxide ions OH−. These ions can react with hydrogen ions (H+ according to Arrhenius) from the dissociation of acids to form water in an acid–base reaction.

Chemiosmosis

Chemiosmosis is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient. An important example is the formation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis. Hydrogen ions, or protons, will diffuse from a region of high proton concentration to a region of lower proton concentration, and an electrochemical concentration gradient of protons across a membrane can be harnessed to make ATP.

Brønsted–Lowry acid–base theory

The Brønsted–Lowry theory (also called proton theory of acids and bases) is an acid–base reaction theory which was first developed by Johannes Nicolaus Brønsted and Thomas Martin Lowry independently in 1923. The basic concept of this theory is that when an acid and a base react with each other, the acid forms its conjugate base, and the base forms its conjugate acid by exchange of a proton (the hydrogen cation, or H+). This theory generalises the Arrhenius theory.