N-tert-butyl-2-hydroxy-2-

N-Tert butyl-2-hydroxy-2-(2-pyrldyl)ethanamlde (3).5 To a mixture ol pyndme 2 caiboxaldehyde 1 (30 g, 0 28 mol) and tert butyl isocyanide 2 (10 5 g, 0 12 mol) in chloreform (100 mL) cooled at 5 C, was added dropwise with stimng tritluoroacetic acid (30 g 0 26 mol)... 

N-tert-Butyl-2-(5-benzyloxy-6-hydroxy-methyl-2-pyr idyl)-2-hydroxy acetamide Pirbuterol Butyl bromide Bufexamac Bupivacaine Fenipentol sec-Butyl bromide... 

N-tert-butyl-2-[2(R)-hydroxy-4-phenyl-3(S)-phthalimido-butyl]decahydra-(4oS,8aS)-iso-quinoline-3(S)-carboxomide (VIII)... 

N-Aryl-triphenyl- XII/1, 176 N-(3,5-Di-tert.-butyl-2-hydroxy-phenyD-triaryl- E2, 104 (Ar3P + Amin/02) N-Dimethylarsano-trialkyl- XIII/8, 284... 

Obtained by treatment of 3-amino-5-tert-butyl-2-hydroxy-benzophenone with 2 N hydrochloric acid [472],... 

Preparation by adding a solution of 5-tert-butyl-2-hydroxy-propiophenone in an acetic acid and hydrochloric acid (d = 1.19) mixture to an aqueous solution of 0.2 N potassium bromate and potassium bromide, then stirring 24 h after the addition of ketone (97%) [7560,7561]. 

A solution of 747 mg of 2-[3(S)-(benzyloxyformamido)-2(R)-hydroxy-4-phenylbutyl-N-tert.butyl-decahydro-(4aS,8aS)-isoquinoline-3(S)-carboxamide in 40 ml of ethanol was hydrogenated over 10% palladium-on-carbon at 20°C and under atmospheric pressure for 5 h. The catalyst was removed by filtration and the filtrate was evaporated to give 561 mg of 2-[3(S)-amino-2(R)-hydroxy-4-phenylbutyl]-N-tert-butyl-decahydro-(4aS,8aS) -isoquinoline-3(S)-carboxamide as a buff colored solid. 

N-tert-buty -2-[3(S)-amino-2 (R)-hydroxy - 4 -phenyl butyl ] -decohydro-(4oS, 80S)-iso-quinoline-J(S)-corboxomide (IX)... 

Ethanol 2-[2-(Dimethylamino-ethyl)-methyl-amino]-l-phenyl- E21f, 5795 (CO-NR2 -> CH2-NR2) Hydrazin l-(3-tert.-Butyl-4-hydroxy-5-methyl-benzyl)-l-methyl- E16a, 477 (N-Benzylier.)... 

HD-2 Di-n-octadecyl-3,5-di-tert-butyl-4-hydroxy benzyl phosphonate yes2... 

HIBA 2-Hydroxyisobutyric acid HIBAL 2-Hydroxy-2-methylpropanal HRT Hydraulic retention time LUST Leaking underground storage tank MBR Membrane bioreactor MTBE Methyl tert-butyl ether MPD 2-methyl 1,2-propanediol N Nitrate NA Natural attenuation ND Not determined ns Not specified P Phosphate... 

CXXXIX and CXL (R = H). The reaction proceeds analogously in aqueous-alcoholic medium (in intermediates CXXXIX and CXL, R = Me or Et). Analysis of ESR spectrum of the secondary radical as well as the model oxidation of 2-tert-butyl-6-hydroxy-hydroquinone CXLII confirmed the structure of the dianion radical CXLI. Also the oxidation of other 2-tert-alkyl-, 2-sec.alkyl-, or 2-n-alkylhydroquinone proceeds by the same mechanism1981. The oxidation can be carried out preparati-vely194,195,198) 2-hydroxy-6-alkyl-l,4-benzoquinonesof type CXLIII are formed in the yield of 65 to 87%. 

N,N -hexane-1,6-diylbis(3-(3,5-di-tert-butyl-4-hydroxy-phenylpropionamide)) 3,3 ,3 ,5, 5 ,5 -hexa-tert-butyl-a,a ,a -(mesitylene-2,4,6-triyl)tri-p-cresol 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine-2,4,6(1 H,3H,5H)- trione Phosphite bis-(2,4-di-t-butylphenol) pentaerythritol diphosphite tris (2,4-di-tert-butylphenyl)phosphite phosphoric acid, (2,4-di-butyl-6-methylphenyl)ethylester distearyl pentaerythritol diphosphite Optical brightener 2,2 -(2,5-thio-phenediyl)bis(5-tert-butylbenzoxazole)... 

---