GB2011051985 METHODS FOR THE NITRATION OF AROMATIC COMPOUNDS

1. (WO2012049513) METHODS FOR THE NITRATION OF AROMATIC COMPOUNDS

National Phase

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Latest bibliographic data on file with the International Bureau

Pub. No.:		WO/2012/049513		International Application No.:		PCT/GB2011/051985
Publication Date:		19.04.2012		International Filing Date:		13.10.2011

IPC:

C07C 201/08 (2006.01), C07C 205/06 (2006.01), C07C 205/12 (2006.01)

Applicants:

UNIVERSITY COLLEGE CARDIFF CONSULTANTS LIMITED [GB/GB]; 30-36 Newport Road Cardiff South Glamorgan CF24 0ED (GB) (For All Designated States Except US).
SMITH, Keith [GB/GB]; (GB) (For US Only).
EL-HITI, Gamal [GB/GB]; (GB) (For US Only).
ALOTAIBI, Mohammad [SA/SA]; (SA) (For US Only)

Inventors:

SMITH, Keith; (GB).
EL-HITI, Gamal; (GB).
ALOTAIBI, Mohammad; (SA)

Agent:

LAMBERT, Ian; Wynne-Jones, Lainé & James LLP Temple Court 13A Cathedral Road Cardiff CF11 9HA (GB)

Priority Data:

1017344.1

14.10.2010

Title

(EN) METHODS FOR THE NITRATION OF AROMATIC COMPOUNDS
(FR) PROCÉDÉS DE NITRATION DE COMPOSÉS AROMATIQUES

Abstract:

(EN)According to the invention there is provided a method for the nitration of an aromatic compound including the step of reacting the aromatic compound with nitric acid in the presence of an acid anhydride and an aluminosilicate catalyst, in which the acid anhydride is at least one of: ((C_nH2_n+1)CO)₂0, where n is 1 to 4 and the moiety C_nH2_n+1can be straight or branched chain; ((CH_pCl_q)CO)₂0, where p is 0 to 2, q is 1 to 3, and p+q = 3; and oxoiane -2, 5-dione, with the proviso that when the acid anhydride is (CH₃CO)₂0, the aromatic compound is toluene, 2-nitrotoluene or 4-nitrotoluene, and the nitration is performed to produce 2,4-dinitrotoluene.
(FR)Cette invention concerne un procédé de nitration d'un composé aromatique, comprenant l'étape consistant à faire réagir le composé aromatique avec de l'acide nitrique en présence d'un anhydride acide et d'un catalyseur aluminosilicate, l'anhydride acide étant au moins l'un des composés suivants : ((C_nH2_n+1)CO)₂O, n valant de 1 à 4 et la fraction C_nH2_n+1pouvant être une chaîne linéaire ou ramifiée ; ((CH_pCl_q)CO)₂O, p valant 0 à 2, q valant 1 à 3, et p + q = 3 ; et oxoiane-2,5-dione, à condition que lorsque l'anhydride acide est (CH₃CO)₂O, le composé aromatique est le toluène, le 2-nitrotoluène ou le 4-nitrotoluène, et la nitration est effectuée pour produire du 2,4-dinitrotoluène.

Designated States:

AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).

Publication Language:	English (EN)
Filing Language:	English (EN)

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