Diethoxy diphenyl

C3H5.HNC6H2(N02)2-C6H2(N02)2NH.C3H5 mw 444.36, N 18.91%, orn-red ndls (from phenol or salicylic acid methyl ester), mp 205° (dec) was prepd by heating at 100° in a sealed tube 3, 5, 31, 51-tetranitro-4, 4 -dimethaxy (or diethoxy) -diphenyl with allylamine in alcohol (Refs 1 3)... 

C NMR, 7, 498 (79TH51600) 2H-Azepine-4-carboxylic acid, 7-(4-bromophenyl)-3-methoxy-2-oxo-6-phenyl-X-ray, 7, 494 <79H(12)1423> 3H-A2epine-4-carboxylic acid, 6-acetyl-2-ethoxy-3-oxo-7-phenyl-, ethyl ester H NMR, 7, 503 <81H(16)363) 3H-Azepine-4-carboxylic acid, 2,6-diethoxy-3-oxo-7-phenyl-, ethyl ester H NMR, 7, 503 <81H(16)363) 3H-Azepine-4-carboxylic acid, 2-ethoxy-3-oxo-6,7-diphenyl-, ethyl ester HNMR, 7, 503 <81H(16)363) 3H-Azepine-4-carboxylic acid, 2-ethoxy-3-oxo-7-phenyl-, ethyl ester... 

Cyclopropenone formation should involve the bisketene 46 and its decarbonylation to the monoketene 47 (a valence tautomer of cyclopropenone 44), since photolysis in protic media like ethanol produces diethoxy diethyl tartrate 45) (meso and d,l). This method was also successful in the case of l,2-diphenyl-3,3-dichloro-cyclo-butene dione (48) giving rise to diphenyl cyclopropenone49 (but as for 44 only a moderate yield was produced) ... 

This procedure represents the first reported synthesis of cis- and further reaction product, 4//-l,4-thiazine 1,1-dioxide. A derivative of the latter, 3,5-diphenyl-4//-l, 4-thiazine 1,1-dioxide,... 

Erwahnenswert ist die Umsetzung von Diethoxy-phenylethinyl-phosphan mit Michaelis-Arbuzov-Produkt) ... 

Bis-[4-phospho-phenyl)]- XII/2, 174 Bis-ftriphenylphosphoranyliden]- E2, 883 Butylamino- -diphosphonsaure E2, 307 [(Diethoxy-phosphoryl)-methoxyl-(diethoxy-phosphoryl)- XII/1, 452 Dicthylamino- -diphosphonsaure E2, 307 Dimethylamino- -diphosphonsaure E2, 307 Diphenylphosphoryl-(diphenyl-thiophosphinyl)-E2, 89... 

Acetyl-diphenyl- E2, 42 Alkyl-bis-[2-chlor-alkoxy]- E2, 443 Allyl-diethoxy- E2, 201 Allyl-difluor- E2, 836 Allyl-diphenyl- E2, 19, 93... 

Benzyl-diethoxy- E2, 134 Benzyl-diisopropyloxy- E2, 134 Benzyl-ethyl-phenyl- -tosylimid E2, 113 Benzyl-methyl-phenyl- -tosylimid E2, 113 Benzyloxy-diphenyl- E2, 17, 18 Benzyloxy-ethoxy-hydroxy- E2, 187 Bis-[2-biphenylyl]- E2, 876 [2,6-bis-(2-tetrahydropyranyloxy-methyl)-phenyl]-Bis-[4-brom-anilino]-phenyl- E2, 416 Bis-[2-brom-ethoxy]-(2-brom-ethyl)- E2, 196 Bis-[butylthio]-ethyi- E2, 79, 408 Bis-[2-chlor-cthoxy]-butyl- E2, 196 Bis-[2-chlor-ethoxy]-(2-chlor-ethyl)- E2, 196 Bis-[2-chlor-ethoxy]-methyl- E2, 196 Bis- 2-chlor-ethoxy]-phenyl- E2, 196, 197, 202 Bis- 2-ehlor-ethoxy]-(2-phcnyl-vinyl)- E2, 196 Bis-(2-ehlor-ethoxy]-vinyl- E2, 196 Bis-j 2-chlor-ethyl]-methyl- E2, 205 Bis-[chlormethyl]-dodecyl- E2, 22 Bis-12-cyan-ethyl]- E2, 223 Bis- diethylamino]-butyl- E2, 486 Bis-[ l-cthinyl-butyl]-phenyl- E2, 197 Bis-[ethoxycarbonyl-methyl]-chlor- E2, 251 Bis-[ethylthio]-ethyl- E2, 408 Bis-[4-methoxy-aniliiio]-phenyl- E2, 416 Bis-[4-methyl-phenylJ-phenyl- K2, 105 Bis- 4-methyl-phcnyl]-phenyl- -phenylsulfonvlimid E2, 105... 

Brom-phenyl)-(4-chlor-phenyl)- E2, 290 (4-Brom-phenyl)-dimethoxy- E2, 202 (4-Brom-phenyl)-dipropyloxy- E2, 202 (4-Brom-phenyl)-methoxy-phenyl- E2, 293 2-Butenyl-dimethoxy- E2, 201 tert.-Butyl-chlor-methyl- E2. 288 Butyl-diehlor- E2, 854 Butyl-diethoxy- E21, 201, 206 Butyl-difluor- E2, 854 Butyloxy-diethylamino-phcnyl- E2, 209 Butyloxy-diphenyl- E2, 281 tert.-Butyloxy-diphenyl- E2, 23 Butyloxy-dipropyl- E2, 292 Butvloxy-ethoxy-hydroxy- E2,187 Butvloxy-hydroxy-phenyl- E2, 189, 190, 422 tcrt.-Butyloxy-phenyl-vinyl- E2, 22 Butylthio-chlor-ethyl- E2, 222 (4-Chlor-butyl)-dibutyloxy- E2, 201 Chlor-(2-chlor-1 -chlormethyl-ethoxy)-phenvl- E2, 191, 197... 

WITTIG-HORNER REAGENTS Carbome-thoxyethyl(diphenyl)phosphine oxide. Diethoxy methyldiphenyl phosphine oxide. Diethyl [(2-tetrahydropyranyloxy)-methyl]-phosphonate. Methyl bis(trifluoroethyl)-phosphonoacetate. N-Morpholinodiphenyl-phosphine oxide. Triethylphosphonoace-tate. 

The following alkoxypyrazines have been prepared from the corresponding dichloropyrazines and alkoxide ions 2,3-dimethoxy-5,6-dimethyl(and diphenyl) (797) 2,3-dibenzyloxy (sodium benzyl oxide in benzyl alcohol at reflux for 24 hours (883)] [but 23-dichloropyrazine with sodium hydride and benzyl alcohol in xylene gave l,4-dibenzyl-2,3-dioxo-l,2,3,4-tetrahydropyrazine)(988)] 2-chloro-5-methoxy (838) 2,5-diethoxy-3,6-dimethyl (872) 2methanolic sodium methoxide refluxed for 2 h) 2,5-dimethoxy-3-phenyl (817) 2-chloro-5-methoxy(and ethoxy)-3,6-diphenyl (817) 2,5-dimethoxy-3,6-dimethyl (and diisopropyl) (844) 2,5-dimethoxy-3-isopropyl-6-methyl (methanolic potassium methoxide at reflux for 6 days) (844) 2(5)-s-butyl-3-chloro-6-ethoxy-5(2)-isobutyl (93) 2-chloro-6-methoxy (838, 883) 2,6-dimethoxy (reflux for 8h) (832) 2,6-diethoxy (reflux for 14 h) (883) 2-benzyloxy-6-chloro (1 equiv. of sodium hydride and benzyl alcohol in benzene at reflux) (832) 2,6-dibenzyloxy (5 equiv. of sodium benzyloxide in benzene at reflux gave 70%) (832) and 3,5-dimethoxy-2-methyl (535). 

The first example of nucleophilic diaddition reaction in the series of monocyclic 1,2,4-triazines has been found when refluxing 5,6-diphenyl-l,2,4-triazine-3-thione in ethanol, yielding the 5,6-diethoxy adduct 41 (Scheme 28) (72BSF4637). 

Diethoxy-2,5-dihydropyrimidine (27) has a flat ring in the crystalline solid phase, and the molecule is not involved in enamine-imine tautomerism in solution <86JOC4623>. The 4,6-diphenyl analogue (28), however, is in equilibrium with its 1,2-dihydro tautomer (29) in solution (Equation... 

Methane dichloride Methane-, dichloro-. See Methylene chloride Methane, dicyano-. See Malononitrile Methane, diethoxy-. See Diethoxymethane Methane, diphenyl-. See Diphenylmethane Methanedisulfonic acid, aluminum salt (3 2). See Aluminum methionate p-Methane-2,9-dithiol. See D-Limonene dimercaptan Methane gas CAS 74-82-8... 

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