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Tsev / Khoom/ Organic Chemistry / Amides
N, N-Dimethylbenzylamine

N, N-Dimethylbenzylamine

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N, N-Dimethylbenzylamine Cov ntaub ntawv yooj yim
Khoom npe: N, N-Dimethylbenzylamine
Synonyms: Araldite accelerator 062; aralditeaccelerator 062; Benzenemethamine, N, N-dimethyl-; Benzenemethanamine, N, N-dimethyl-; Benzylamine, N, N-dimethyl-; Benzyl-N, N-dimethylamine; Dabco B-16; N - (Phenylmethyl) dimethylamine
CAS: 103-83-3
MF: C9H13N
MW: 135.21
EINECS: 203-149-1
Khoom Categories: Anilines, Aromatic Amines thiab Nitro Compounds; Organics; REALET
Mol File: 103-83-3.mol
N,N-Dimethylbenzylamine Structure
 
N, N-Dimethylbenzylamine Chemical Properties
Melting point -75 degree
Boiling point 183-184 degree 765 mm Hg (lit.)
ceev 0.9 g/mL ntawm 25 degree (lit.)
vapor siab 2.4 hPa (20 degree)
Refractive Index n20 / D 1.501 (lit.)
Fp 130 degree F
cia temp. Khaws hauv qab +30 degree .
solubility dej: soluble
pka ua pK1: 9.02 (+1) (25 degree)
daim ntawv Ua kua
xim Ntshiab xim tsis muaj xim rau lub teeb daj
PH 10 (10g / l, H2O, 20 degree) (saturated tov)
tsw muaj zog ntses tsw
tawg txwv 0.9-6.3%(V)
Dej Solubility 8 g/L (20 ºC)
rhiab heev Huab cua Sensitive
BRN 1099620
Kev ruaj ntseg: ruaj khov. Incompatible nrog muaj zog acids, muaj zog oxidizing neeg sawv cev.
LogP 1.98 ntawm 25 degree
CAS DataBase Reference 103-83-3(CAS DataBase Reference)
NIST Chemistry Reference Benzenemethanamine, N, N-dimethyl-({2}})
EPA Tshuaj Registry System N, N-Dimethylbenzylamine (103-83-3)
 
Cov ntaub ntawv kev nyab xeeb
Hazard Codes C
Risk Statements 10-20/21/22-34-52/53
Cov lus hais txog kev nyab xeeb 26-36-45-61
RIDADR UN 2619 8/PG 2
WGK Germany 2
RTECS PIB 450000
F 10-13-23
Autoignition Kub 410 degree
TSCA Yog lawm
HazardClass 8
PackingGroup II
HS Code 29214980
Toxicity LD50 qhov ncauj hauv luav: 290 mg/kg LD50 dermal Rat 695 mg/kg
 
MSDS Cov Ntaub Ntawv
Tus kws kho mob Lus
BDMA Lus Askiv
 
N, N-Dimethylbenzylamine Siv thiab Synthesis
Chemical Properties Tsis muaj xim rau lub teeb daj flammable kua nrog ammonia tsw. Soluble hauv ethanol, ether, insoluble hauv dej.
Siv N, N-Dimethylbenzylamine tau siv rau hauv kev sib txuas ntawm bis [(N, N-dimethylamino) benzyl] selenide. Nws tau siv los ua catalyst thaum kho cov tshuaj tiv thaiv ntawm cov qauv ntawm diglycidyl ether ntawm bisphenol A thiab tetrahydrophthalic anhydride. Nws undergoes qhia ortho metalation nrog butyl lithium. Nws reacts nrog methyl iodide kom tau ammonium ntsev, uas yog siv raws li theem hloov catalysts. Tsis tas li ntawd, nws yog siv los ua ib qho catalyst rau kev tsim ntawm polyurethane foams thiab epoxy resins.
Kev npaj 25% Aqueous Dimethylamine, 1088 grams
Benzyl Chloride, 126.6 grams
Nyob rau hauv lub apparatus ntawm Piv txwv 1, benzyl chloride tau ntxiv dropwise nyob rau hauv ob-teev lub sij hawm mus rau amine (molar ratio 1 mus rau 6) ntawm tus nqi txaus los tswj qhov kub hauv qab 40 degree. stirring tau txuas ntxiv ntawm chav tsev kub rau ib teev ntxiv kom ua tiav cov tshuaj tiv thaiv uas tau hais los ntawm qhov sib npaug hauv qab no.
Preparation of N,N-dimethylbenzylamine
Tom qab ntawd cov tshuaj tiv thaiv sib tov tau txias rau hauv ib qho kev sib cais thaum sawv hauv lub tub yees khaws cia ntawm 5 degree C. thiab sib cais ua ob txheej. Lub sab sauv oily txheej, hnyav 111.5g, raug tshem tawm thiab chav distilled kom txog thaum tsis muaj ntxiv oleaginous tivthaiv tau pom nyob rau hauv lub distillate li nws tuaj. Lub crude distillate tau pom muaj 103.5g ntawm N, N-dimethylbenzylamine (76.1% ntawm txoj kev xav), 3.3g ntawm dimethylamine thiab tsis muaj quaternary ntsev. Lub dimethylamine tau distilled tawm hauv qab 29 degree nyob rau hauv atmospheric siab los ntawm N, N-dimethylbenzylamine (bp 82 degree / 18mmHg).
Synthesis Reference (cov) Phau ntawv Journal of Organic Chemistry, 40, p. 531 Ib., 1975DOI:10.1021/j00892a043
Synthetic Communications, 6, p. 539 Ib., 1976DOI: 10.1080/00397917608063545
Kev piav qhia dav dav Benzyldimethylamine zoo nkaus li tsis muaj xim rau lub teeb daj nrog cov ntxhiab tsw ntxhiab. Me ntsis ntom dua dej thiab me ntsis soluble hauv dej. Corrosive rau daim tawv nqaij, qhov muag thiab mucous daim nyias nyias. Me ntsis tshuaj lom los ntawm kev noj, daim tawv nqaij nqus thiab nqus tau pa. Siv rau hauv kev tsim cov nplaum nplaum; dehydrohalogenating catalyst; corrosion inhibitor; acid neutralizer; potting compounds; cellulose modifier thiab quaternary ammonium compounds.
Cua & Dej Reactions Flamable. Me ntsis soluble hauv dej.
Reactivity Profile N, N-Dimethylbenzylamine neutralizes acids ntawm exothermic tshua los tsim cov ntsev ntxiv rau dej. Tej zaum yuav tsis sib haum nrog isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, thiab acid halides. Flammable gaseous hydrogen yog tsim los ntawm amines ua ke nrog cov muaj zog txo cov neeg ua haujlwm, xws li hydrides. Tej zaum yuav tawm tsam qee yam yas [USCG, 1999].
Health Hazard Kev nqus pa tuaj yeem ua rau tuag taus vim qhov mob spasm, o thiab edema ntawm lub larynx thiab bronchi, tshuaj pneumonitis, thiab pulmonary edema. Cov tsos mob ntawm tus kab mob kis tau xws li kub hnyiab, hnoos, hawb pob, laryngitis, ua tsis taus pa, mob taub hau, xeev siab, thiab ntuav.
Hluav Taws Xob Kev phom sij tshwj xeeb ntawm Cov Khoom Siv Hluav Taws Xob: Cov pa phem yog tsim thaum cua sov.
Kev ruaj ntseg Profile Tshuaj lom los ntawm kev noj. Muaj tshuaj lom los ntawm kev nqus pa thiab kev sib cuag ntawm daim tawv nqaij. Corrosive. Qhov muag loj thiab tawv nqaij khaus. Flammable thaum raug tshav kub los yog nplaim taws. Thaum rhuab mus rau decomposition nws emits cov pa phem ntawm NOx
Txoj Kev Purification Qhuav cov amine hla KOH pellets thiab faib nws hla Zn hmoov av hauv CO2- huab cua dawb. Nws muaj pKa2 5 ntawm 8.25 hauv 45% aqueous EtOH. Khaws nws hauv qab N2 lossis hauv lub tshuab nqus tsev. Lub picrate muaj m 94-95o, thiab picrolonate muaj m 151o (los ntawm EtOH). [Skita & Keil Chem Ber 63 34 1930, Coleman J Am Chem Soc 55 3001 1933, Devereux et al. J Chem Soc 2845 1957.] Cov tetraphenyl borate ntsev muaj m 182-185o. [Crane Anal Chem 28 1794 1956, Beilstein 12 IV 2161.]
 
N, N-Dimethylbenzylamine Npaj Cov Khoom Siv thiab Cov Khoom Raw
Cov khoom nyoos Benzyl chloride-->Dimethylamine-->Benzylamine-->aminoformic acid-->Formamide, N-methyl-N-(phenylmethyl)--->BenzeneMethanaMine, 2-chloro-N,N-diMethyl--->N,N-dimethylbenzylamine N-oxide-->N-Methylbenzylamine-->Dimethylamine hydrochloride-->2-Chlorobenzaldehyde-->Benzonitrile-->N,N-Dimethylbenzamide-->Benzyl cawv
Cov khoom npaj Benzyldodecyldimethylammonium bromide-->BRETYLIUM TOSYLATE-->Diethyl 3,5-di-tert-butyl-4-hydroxybenzyl phosphate-->dioctadecyl [[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]phosphonate-->Benzyltrimethylammonium bromide-->DI-MICRO-CHLOROBIS[2-[(DIMETHYLAMINO)METHYL]PHENYL-C,N]DIPALLADIUM-->DIMETHYLDIFLUOROSILANE-->2-Iodobenzyl chloride

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