1H-benzotriazole

PS-BEMP = polymer-supported 2-ferf-butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazophosphorine EDAC = 1 -[3-(dimethylamino)propyl]-3-ethylcarbodiimide PS-PPh3 = polystyrene-supported PPh3 TBTU = 2(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate. [Pg.274]

Among the five-membered heterocycles with three nitrogen atoms, triazoles and benzotriazoles are of significant practical importance. In the case of ben-zotriazole, the aromaticity of the benzenoid 1H-benzotriazole (90A, R = H) has been considered to be greater than that of the quinonoid 2/7-benzotria-zole (90B, R = H) (Scheme 43).134 However, the difference in aromaticity between tautomers is greatly dependent on the dielectric constant of the medium. [Pg.19]

The tautomeric equilibrium of unsubstituted benzotriazole has been studied extensively as summarized in reviews (63AHC(2)27, 76AHCS295). In the crystalline state the sole existence of 1H-benzotriazole is demonstrated by X-ray (74AX(B)1490), by 13C NMR (83H(20)1713), and by microwave spectra (93JSP)161)136). The 1 //-form also predominates strongly under most other conditions. [Pg.133]

PyBOP 1H -benzotriazol-1 -yloxytris (pyrrolidino)phosphonium hexafluorophosphate... [Pg.96]

In 0,1 n Sehwcfelsaure werden allgemein 2-Amino-phenole (7-16% d.Th.) und aus 1H-Benzotriazol in Methanol 2-Methoxy-anilin (70%) und Anilin (30%) sowie in Benzol 2-Amino-biphenyl (32% d.Th.) erhalten. 1 -Methoxy-1 H- benzotriazol) wird in Propanol zu lU-Benzotriazol (51% d.Th.) reduziert. [Pg.570]

Phenyl- 1H-(benzotriazol)3 bildet je nach Losungsmittel verschicdene Produkte B. ... [Pg.572]

More recently, the use of phosphonium (e.g., benzotriazole-1-yl-oxy-tris-pyrrolidino phosphonium hexafluorophosphate (PyBOP)) and uronium (e.g., 2-(1H- benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU)) coupling reagents have gained wide use in effecting peptide bond formation, particularly in SPPS (Fig. 7.6). The structures of PyBOP and HBTU both incorporate an equivalent of HOBt, and the final reactive Boc or Fmoc amino acid species is the corresponding OBt active ester (13). [Pg.300]

Benzeneacetonitrile. See Phenylacetonitrile Benzeneacetonitrile, a-phenyl-. See Diphenylacetonitrile Benzene azimide. See 1H-Benzotriazole Benzeneazoanilide Benzeneazoaniline. See Diazoaminobenzene... [Pg.426]

BZCF. See Benzyl chloroformate BZT. See 1H-Benzotriazole C. See Carbon C-1. See Alumina... [Pg.658]

Cobalt wolframate. See Cobalt tungstate (ous) Cobalt yellow. See Cobalt potassium nitrite Coberine. See Vegetable oil Cob Flour 4, 6,10a, Cob Grit HI, 2, 3, 8, 150, 3050. See Com (Zea mays) cob meal Cobratec 40S. See Sodium benzotriazole Cobratec 99 Cobratec BT-PG. See 1H-Benzotriazole... [Pg.994]

Hydroxybenzopyridine. See 8-Hydroxyquinoline 1 -Hydroxybenzotri azole CAS 2592-95-2 EINECS/ELINCS 219-989-7 Synonyms Benzazimidol hydrate 1H-Benzotriazole, 1-hydroxy-, hydrate 1-Hydroxy-1H-benzotriazole hydrate N-Hydroxybenzotriazole hydrate Classification Aromatic heterocyclic Empirical CeHsNsO H2O Properties M.w. 135.14 m.p. 156-158 C Toxicology LDLo (oral, rat) 5 g/kg low toxicity by ing. primary eye irritant TSCA listed Precaution Potentially explosive (heated above 160 C)... [Pg.2108]

Preventol BP Tech.. See Chlorophene Preventol Cl 4. See Sodium 2-mercaptobenzothiazole Preventol Cl 7-50. See Sodium tolyltriazole Preventol Cl 7-100. See Tolyltriazole Preventol Cl 8-100. See 1H-Benzotriazole Preventol CMK 40, Preventol CMK Pellets. See p-Chloro-m-cresol... [Pg.3701]

Synonyms Benzotriazole, sodium salt 1H-Benzotriazole, sodium salt Sodium benzotriazolate Sodium 1H-benzotriazolide... [Pg.3976]

Triatomic oxygen. See Ozone 3,5,7-Triaza-1-azoniatricyclo [3.3.1.1(3,7)-jdecane, 1-methyl-chloride. See Methenammonium chloride Triazaindene 1,2,3-Triazaindene. See 1H-Benzotriazole... [Pg.4471]

Verton MFX. See Polypropylene Vertral 4/021280. See Octahydro-4,7-methano-1 H-indenecarbaldehyde Vertraldehyde. See Veratraldehyde Vertrel XF. See 2,3-Dihydrodecafluoropentane Verv . See Calcium stearoyl lactylate Vervain, European, extract Vervain extract. See Verbena officinalis extract Verzone Crystal No. 120. See 1H-Benzotriazole Verzone Crystal No. 130. See Cyclohexylamine carbonate... [Pg.4671]

H-Benzotriazole Glycerin Isopropyl alcohol Meroxapol 311 Methoxydiglycol Methoxyethanol Methyl alcohol Propylene glycol SD alcohol 40 SD alcohol 40-B Trimethylene glycol antifreeze ingredient Diethylene glycol antifreeze inhibitor Ethylenediamine Ethylenediamine dihydrochloride antifreeze mfg. [Pg.4823]

Ammonium phenolsulfonate Azadirachta indica extract 1,2-Benzisothiazolin-3-one 1H-Benzotriazole Benzoxiquine Benzylparaben Berberine chloride Bisphenol A Bispyrithione Black mustard (Brassica nigra) extract... [Pg.4829]

Ammonium chloride 1H-Benzotriazole 1,2-Butylene carbonate C7-8 isoparaffin CIO-11 isoparaffin... [Pg.4959]

Ami noethyl piperazine Ammonium lactate Ammonium polyacrylate Amyl formate 1H-Benzotriazole Bisphenol A, hydrogenated 1,3-Butanediol dimethacrylate Butyl oleate... [Pg.4970]

Aluminum silicate Ammonium C12-15 pareth sulfate Ammonium oleate Ammonium ricinoleate Amodimethicone Benzalkonium chloride Benzethonium chloride 1H-Benzotriazole Butyl acetyl ricinoleate 2-Butyl octanoic acid Butyloctanol Calcium petroleum sulfonate Calcium phenoxide C14-15 alcohols Ceteth Ceteth-1 Cetethyidimonium bromide Cetoleth-2 Cetoleth-11 Cetrimonium bromide Cetylarachidol Cetyl betaine Cocoamphodipropionic acid Coco nitrile C9-11 pareth-2... [Pg.5071]

Amodimethicone Behenyl hydroxyethyl imidazoline Bentonite 1H-Benzotriazole Benzyl acetate... [Pg.5553]

Acrylates copolymer 1H-Benzotriazole 3-Bromochloro-5,5-dimethyl hydantoin Calcium chloride Calcium sulfate dihydrate Cocamine C11-15 pareth-7 C11-15 pareth-9 C11-15 pareth-12 1,3-Dibromo-5,5-dimethyl hydantoin... [Pg.5861]

N,N -Disalicylidene-1,2-propanediamine Keromet MD 50 KerometMD60, MD80 Keromet MD 100 Metal Deactivator S 202-377-9 Ethyl hexanediol 202-393-6 Indene 202-394-1 Belclene 510 1H-Benzotriazole Cobratec 99 Cobratec BT-PG NKC-905 B.T.A. [Pg.6716]

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