3- Amino-2,5-dichlorobenzoic acid

Amino-3-chlorobenzoic acid, see 4-Amlno-3.5-dichlorobenzoic acid... 

Plimmer, J.R. Photolysis of TCDD andtrifltrralin on silica and soil. BuU. Environ. Contam. Toxico ., 20(l) 87-92, 1978. Plimmer, J.R. and Hummer. B.E. Photolysis of amiben (3-amino-2.5-dichlorobenzoic acid) and its methyl ester. J. Agric. Food Chem., 17(l) 83-85, 1969. 

Less reactive than acyl halides, but still suitable for difficult couplings, are symmetric or mixed anhydrides (e.g. with pivalic or 2,6-dichlorobenzoic acid) and HOAt-derived active esters. HOBt esters smoothly acylate primary or secondary aliphatic amines, including amino acid esters or amides, without concomitant esterification of alcohols or phenols [34], HOBt esters are the most commonly used type of activated esters in automated solid-phase peptide synthesis. For reasons not yet fully understood, acylations with HOBt esters or halophenyl esters can be effectively catalyzed by HOBt and HOAt [3], and mixtures of BOP (in situ formation of HOBt esters) and HOBt are among the most efficient coupling agents for solid-phase peptide synthesis [2]. In acylations with activated amino acid derivatives, the addition of HOBt or HOAt also retards racemization [4,12,35]. 

Chloramben Amiben, Amoben 3-amino-2,5-dichlorobenzoic acid c7h5ci2no2 206.027 200 0.0192 3.40 ... 

Benzoic acid Amiben 3-Amino-2,5 dichlorobenzoic acid 7003 297 H20, 238 chi 52.4... 

DICHLOROBENZOIC ACID see DER600 p-DICHLOROBENZOL see DEP800 (-t-)-4.((3,4-DICHLOROBENZOYL)AMINO)-5-((3-METHOXYPROPTX)PENTYLA nNO)-5-OXOPENTANOIC ACID see LlllOO d,l-4-(3,4-DICHLOROBENZOYLAMINO)-5-(N-3-METHOXYPROPYLPENTYLAMINO)-5-OXO-PENTANOIC ACID see LlllOO DI-(4-CHLOROBENZOYL) PEROXIDE see BHM750... 

C7H4BrF3N202 4-amino-3-bromo-5-nitrobenzotrifluoride 113170-7M 25.00 1.8334 2 9749 C7H4CI202 2,3-dichlorobenzoic acid 50-45-3 25.00 1.4487 2... 

C7H5CI2N02 3-amino-2,5-dichlorobenzoic acid 133-90-4 25.00 1.4653 2 10080 C7H5N04 4-hydroxy-3-nitrobenzaldehyde 3011-34-5 20.00 1.5597 2... 

C7H4BrClN20 2-amino-5-bromo-6-chloroben20xa20le 64037-09-8 560.65 49 741 1.2 9745 C7H4CI202 2,4-dichlorobenzoic acid 50-84-0 574.15 51.052 2... 

C7H4BrCIN20 2-amino-6-bromo-5-chloroben20xa20le 64037-08-7 560.65 49.741 2 9746 C7H4CI202 2,5-dichlorobenzoic acid 50-79-3 574.15 51.052 1.2... 

Quinacrine may be easily prepared starting form 2,4-dichlorobenzoic acid (90). Ullmann reaction of 90 with p-anisidine (91) gives the desired diphenylamine 92, which is cyclised to form the 9-chloroacridine derivative (93). Condensation of the latter with l-diethylamino-4-aminopentane affords quinacrine (22) [71]. A similar sequence of reaction starting from 90 and 5-amino-2-methoxypyridine (94) gives azocrine (28) [72] (Scheme 3). 

Fenacf 2.3.6- TBAf 2.3.5.6- TBA Amibenf 2.3.6- trichlorophenylacetic acid 2.3.6- trichlorobenzoic acid 2.3.6.6- tetrachlorobenzoic acid 3,amino-2,6-dichlorobenzoic acid... 

Numerous individual substances were detected only in Ru04 extracts e.g. di- to pentachlorinated benzenes, 4-chlorobenzoic acid and 2,4-dichlorobenzoic acid 24, hexachlorocyclohexanes (a-,P-,y- and 5-HCH) 22, a technical mixture obtained during the synthesis of lindane, and the plasticizers alkylsulfonic acid phenylesters 23. These plasticizers were recently identified in riverine sediments (Franke et al. 1998). Furthermore, nitro-substituted benzoic acid and alkylated phenols 24 were observed. The occurrence of aromatic nitro compounds as a result of the oxidation of anilines can be excluded due to the contemporary appearance of amino compounds, e.g. 4-aminobenzoic acid or N-ethylaniline. However, the origin as well as the emission pathway of these compounds is still unknown. 

At the time of its commercial development, extensive tests showed that the reduction product of 2,5-dichloro-3-nitrobenzoic acid, 3-amino-2,5-dichlorobenzoic acid (chloramben, 3) is a compound of similar selectivity but greater activity and better tolerated by a number of crops. 

Amino-2,6-dichlorobenzoic acid Chioramben CjHjCijNOj 133-90-4 206.027 200 si DMSO... 

Other important members of synthetic auxins include 2,3,6-trichlOrobenzoic acid and 2-methoxy-3,6-dichlorobenzoic acid in the benzoic acid group and a-naphthoxyacetic acid and 4-amino-3,5,6-trichloropicolinic acid in the naphthoxy acid group. 

---