D-trans-Allethrin

Base Information

• Chemical Name: D-trans-Allethrin
• CAS No.: 28057-48-9
• Molecular Formula: C19H26O3
• Molecular Weight: 302.41
• Hs Code.: 29183000
• Mol file: 28057-48-9.mol

Synonyms:D-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate;2-Methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate trans-(+)-;Caswell no. 025a;

Chemical Property of D-trans-Allethrin

Chemical Property:

• Vapor Pressure: 3.46E-06mmHg at 25°C
• Refractive Index: 1.515
• Boiling Point: 386.8 ºC at 760 mmHg
• Flash Point: 166 ºC
• PSA: 40.13000
• Density: 1.05 g/cm³
• LogP: 0.97470
• Storage Temp.: 0-6°C

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s): N,Xn
• Hazard Codes: Xn,N
• Statements: 20/22-50/53
• Safety Statements: 36-60-61

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of D-trans-Allethrin

There total 24 articles about D-trans-Allethrin which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.0%

(1R)-trans-3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid chloride (4489-14-9) + allethrolone (551-45-1,22373-75-7,54225-47-7,29605-88-7) → bioallethrin (260359-57-7,22431-63-6,28057-48-9,84030-86-4)

Guidance literature:

With pyridine; In toluene; at 5 - 20 ℃; for 3h;

Reference yield: 85.0%

allethrolone (551-45-1,22373-75-7,54225-47-7,29605-88-7) + zirconium(IV) chloride (10026-11-6) + chrysanthemumic acid (10453-89-1) → allethrin I (3972-20-1,23453-09-0,28434-00-6,34624-48-1,42534-61-2,61009-23-2,61009-24-3,61009-25-4,61009-26-5,61009-27-6,61046-09-1,8003-34-7,584-79-2,22431-63-6,28057-48-9,84030-86-4)

Guidance literature:

In 5,5-dimethyl-1,3-cyclohexadiene;

Reference yield: 65.0%

→ allethrin I (3972-20-1,23453-09-0,28434-00-6,34624-48-1,42534-61-2,61009-23-2,61009-24-3,61009-25-4,61009-26-5,61009-27-6,61046-09-1,8003-34-7,584-79-2,22431-63-6,28057-48-9,84030-86-4)

Guidance literature:

upstream raw materials:

(1R)-trans-3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid chloride

3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarbonyl chloride

2-Allyl-3-methyl-cyclopenten-⁽²⁾-dion-(1,4)

(1S,3S)-trans-chrysanthemic acid

Downstream raw materials:

3-Methyl-but-2-enoic acid 3-allyl-2-methyl-4-oxo-cyclopent-2-enyl ester

(1R,3R)-2,2-Dimethyl-3-(2-methyl-propenyl)-cyclopropanecarboxylic acid 3-cyclopropyl-2-methyl-4-oxo-cyclopent-2-enyl ester

4-ethoxy-2-allyl-3-methyl-cyclopent-2-enone-(2,4-dinitro-phenylhydrazone)

Refernces

• 1、 -. "Process for producing cyclopropanecarboxylates". . . Retrieved 2008/06/13.
• 2、 -. "Pesticide compositions and method". . . Retrieved 2008/06/13.