OPTIMIZATION OF THE SYNTHESIS OF A.O.2246 ANTIOXIDANT AND ITS PHENOLIC INTERMEDIATE

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FAREGHI ALAMDARI R.; ZEKRI N.

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Journal: JOURNAL OF ENERGETIC MATERIALS Year:2009 | Volume:4 | Issue:1 Page(s): 65-75

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Information Journal Paper

Title

OPTIMIZATION OF THE SYNTHESIS OF A.O.2246 ANTIOXIDANT AND ITS PHENOLIC INTERMEDIATE

Author(s)

FAREGHI ALAMDARI R. | ZEKRI N. | Issue Writer Certificate

Keywords

PROPELLANTQ3

HTPBQ2

ANTIOXIDANTQ2

SYNTHESISQ2

2-T-BUTYL -4-METHYL PHENOLQ4

2Q4

2'-METHYLENEBIS (4-METHYL-6-T-BUTHYL PHENOL)Q4

A.O.2246Q4

Abstract

Use of ANTIOXIDANTs in the formulation composite PROPELLANTs is unavoidable. These materials are added to the PROPELLANTs to give them stability during storage time. In this paper, different methods of SYNTHESIS of A.O.2246 and its phenolic intermediate were investigated and then considering the advantages and disadvantages of these methods and their potential in scaling up, the preferred method for preparation of these materials was adopted. The commonly used procedure for the production of the intermediate 2-t-butyl-4-methylphenol (by reaction of pcresol with t-butyl alcohol in the presence of phosphoric acid) produces by-products whose separation from the desired material needs consecutive basic and acidic extractions followed by recrystalization. In this work, by optimizing the reaction conditions, we have synthesized the intermediate in 99% purity and 95% yield without any need to go through the separation process. Then by reaction of the produced intermediate with formaldehyde in the presence of concentrated sulfuric acid and sodium dodecyl sulfate, A.O.2246 was produced. High yield of the reaction product, mild reaction condition, short reaction time and its potential to scaling up are the advantages of this method.

Cites

SIMULTANEOUS DETERMINATION OF THE ANTIOXIDANT A.O.2246 AND 2-TERT-BUTYL-4-METHYL PHENOL BY SPECTROPHOTOMETRIC H-POINT STANDARD ADDITION METHOD

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APA: Copy

FAREGHI ALAMDARI, R., & ZEKRI, N.. (2009). OPTIMIZATION OF THE SYNTHESIS OF A.O.2246 ANTIOXIDANT AND ITS PHENOLIC INTERMEDIATE. JOURNAL OF ENERGETIC MATERIALS, 4(1), 65-75. SID. https://sid.ir/paper/115349/en

Vancouver: Copy

FAREGHI ALAMDARI R., ZEKRI N.. OPTIMIZATION OF THE SYNTHESIS OF A.O.2246 ANTIOXIDANT AND ITS PHENOLIC INTERMEDIATE. JOURNAL OF ENERGETIC MATERIALS[Internet]. 2009;4(1):65-75. Available from: https://sid.ir/paper/115349/en

IEEE: Copy

R. FAREGHI ALAMDARI, and N. ZEKRI, “OPTIMIZATION OF THE SYNTHESIS OF A.O.2246 ANTIOXIDANT AND ITS PHENOLIC INTERMEDIATE,” JOURNAL OF ENERGETIC MATERIALS, vol. 4, no. 1, pp. 65–75, 2009, [Online]. Available: https://sid.ir/paper/115349/en

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