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Dodecylbenzenesulfonyl azide

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Dodecylbenzenesulfonyl azide Basic information

Product Name:
Dodecylbenzenesulfonyl azide
Synonyms:
  • Dodecylbenzenesulfonyl Azide (soft type) (mixture)
  • 4-Dodecylbenzenesulfonyl azide(soft type)(mixture)
  • 4-DODECYLBENZENESULFONYL AZIDE
  • 4-dodecylbenzensulfonyl azide
  • Dodecylbenzenesulfonyl azide (soft type)
  • P-DODECYLBENZENESULFONYL AZIDE OR 4-DODECYLBENZENESULFONYL AZIDE
  • softtype
  • P-DODECYLBENZENESULFONYL AZIDE
CAS:
79791-38-1
MF:
C18H29N3O2S
MW:
351.51
EINECS:
679-864-1
Mol File:
79791-38-1.mol
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Dodecylbenzenesulfonyl azide Chemical Properties

Density 
1.051 g/mL at 25 °C
refractive index 
n20/D1.510
Flash point:
>110℃
solubility 
solubility pentane, acetone, and most organic solvents.
form 
viscous liquid.
color 
Light yellow to Brown
CAS DataBase Reference
79791-38-1(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
10-36/37/38-20/22
Safety Statements 
16-36/37/39-26
RIDADR 
1993
WGK Germany 
3
HS Code 
29350090
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Dodecylbenzenesulfonyl azide Usage And Synthesis

Uses

diazo-transfer reagent for activated methylene groups.

Uses

Reactant or reagent for synthesis of:

  • Positron emission tomography ligand for imaging metabotropic glutamate receptor type 1
  • Stitching agent for introduction of aziridines into functionalized organic molecules
  • Parenteral cephalosporins

Reagent for:
  • Intermolecular metal-catalyzed carbenoid cyclopropanations
  • Solid-phase synthesis of indolecarboxylates using palladium catalyzed reactions
  • Solid-phase rhodium carbenoid N-H insertion reactions

Uses

4-Dodecylbenzensulfonyl Azide is useful for the synthesis of N-(Benzo[h]quinolin-10-yl)-4-dodecylbenzenesulfonamide. Also, it is used in the preparation of ruthenium nanoparticles protected by ruthenium-nitrene n bonds.

Preparation

prepared by addition of granular sodium azide (1.3 equiv) to a mixture of isomeric sulfonyl chlorides (from a commercial mixture of isomers of p-dodecylbenzenesulfonic acid) in acetone solution.

Reactions

Reagent for Diazo-function Transfer.
The title reagent has been called a safer diazo-transfer reagent, and is a mixture of 12 or more isomeric p-dodecylbenzenesulfonyl azides, ranging by HPLC from 24% to 1% in area and giving essentially a single spot by TLC.
The title reagent has been shown to be very useful for the synthesis of various crystalline diazocarbonyl compounds such as diazobarbituric and diazoisopropylidenemalonic acids, derivatives and homologs of diazoacetoacetic acid, and 9-diazoanthrone (eq 1).

Formation of noncrystalline byproduct dodecylsulfonamides facilitates the workup procedure and isolation of the target crys- talline diazo compounds from the reaction mixture.

storage

Dodecylbenzenesulfonyl azide is the safest of the usual are nesulfonyl azides (tosyl azide, etc.) employed in diazo-transfer processes;appropriate care should be taken,as with all azides. Use in a fume hood.

Purification Methods

elution through short column containing silica gel G with methylene chloride-hexane (1:4) as eluant.

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