2- 5-methoxy-l- 4- phenyl

R = C9H, 3-diphenylphosphinyl-3-methoxy-l-thdecen-4-ol yield 74% d.r. (anti/syn) 70 30 R = C H5 2-diphenylphosphinyl-2-methoxy-l-phenyl-3-butenol yield 70% d.r. (antijsyn) 75 25 R = 2-CH3C6H4 2-diphenylphoxphinyl-2-methoxy-l-(2-methylphenyl)-3-butenol yield 65% d.r. (antijsyn) > 90 10... 

Cyclopentan 2-Methoxy-l -phenyl-seleno- E19a, 456 (HgBr - SeR) Hexanal 6-Phenylselenyl- E13/2,... 

The cyclic carbamate (oxazoIidin-2-one) 313 is formed by the reaction of phenyl isocyanate (312) with vinyloxirane[I92]. Nitrogen serves as a nucleophile and attacks the carbon vicinal to the oxygen exclusively. The thermodynamically less stable Z-isomer 315 was obtained as a major product (10 I) by the reaction of 2-methoxy-l-naphthyI isocyanate (314) with a vinyloxir-... 

LS,4.S )-(E)-2-Bromo-4-l(2-methoxyethoxy)methoxy]-l-phenyl-2-penten-l-ol (3 A, R = C6H5 R2 = II) Typical Procedure49 ... 

The best results were obtained with amides of (S)- or (/ )-3-methoxy-l-phenyl-2-propylamine, which gave, with linear aliphatic aldehydes, products with enantiomeric excesses greater than 75% using titanium(IV) chloride as the Lewis acid. A transition state involving coordination of the titanium by the carbonyl oxygens of both the amide and the aldehyde was proposed95. 

An entry to. yyrt-2-methoxy-3-hydroxycarboxylic acids is also opened using similar methodology. Thus the norephedrine derived (4/ ,5S)-3-(2-methoxy-l-oxoethyl)-4-methyl-5-phenyl-1,3-oxazolidine-2-one 23105a, as well as the phenylalanine derived (4S)-4-benzyl-3-(2-methoxy-l-oxoethyl)-l,3-oxazolidin-2-one 25105b, can be added to aldehydes via the boron enolates to give, after oxidative workup, the adducts in a stereoselective manner (d.r. 96 4, main product/sum of all others). Subsequent methanolysis affords the methyl esters. 

The aldol reaction of 2,2-dimethyl-3-pentanone, which is mediated by chiral lithium amide bases, is another route for the formation of nonracemic aldols. Indeed, (lS,2S)-l-hydroxy-2,4,4-trimethyl-l-phenyl-3-pentanone (21) is obtained in 68% ee, if the chiral lithiated amide (/ )-A-isopropyl-n-lithio-2-methoxy-l-phenylethanamine is used in order to chelate the (Z)-lithium cnolate, and which thus promotes the addition to benzaldehyde in an enantioselective manner. No anti-adduct is formed25. 

Methyl-2-phenyl-l,3-dioxolan — 1-Methoxy-l-phenyl-dthan 76°/0d.Th. 

Dagegen erhalt man aus 2,2,2-Trichlor-l-methoxy-l-phenyl-athan und 2,2,2-Tri-chlor-l-phenyl-athan ausschlieBlich 2,2-Dichlor-l-methoxy-l-phenyl-athan bzw. 2,2-Dichlor-l-p henyl-athan1. 

Hydroxy-2,3-diphenyl- 156 3-Hydroxy-2-methyl-l,3-diphenyl- 296 3-Hydroxy-l-phcnyI- s. Zimtalkohol 3-Isothiocyanat- 124 3-Methoxy-l -phenyl- 549 3-Methoxy-3-phenyl- 578... 

Hydroxy- 262 4-Mercapto-l-phenyl- 594 4-Methoxy-l-phenyl- 594f 4-Methoxy-1 -phenyl-1,2-dihydro- 594... 

Benzylidenehydrazino-3-methoxyquinoxaline (273) underwent oxidative cyclization to 4-methoxy-l-phenyl[l,2,4]triazolo[4,3-fl]quinoxaline (274) [Cu(OAc)2, AcOH, reflux, 1 h 80% " tetrachlorobenzoquinone, CICH2CH2 Cl, reflux, 90 min 92% " analogs by both procedures]... 

C22H31N7052+-2 Cl -5 H20 dihydrate 9-[3-Deoxy-3-(p-methoxy-L-phenyl-alanylamino)-/ -D-ribofu- PURMYC10 30 464... 

The objectives of this study were to (a) determine the mobilities of the herbicides, alachlor (2-chloro-2, 6 -diethyl-N-(me-thoxymethyl)acetanilide), butylate (S-ethyl diisobutylthiocarba-mate), and metolachlor (2-chloro-N-(2-ethyl-6-methyl phenyl)-N-(2-methoxy-l-methyl ethyl) acetamide in the laboratory using soil leaching columns and soil thin-layer vapor diffusion techniques,... 

Hie GOG-Dimer formed from the lignin dimer compound (GOG) by laccase III was also degraded by laccase HI, resulting in the formation of compounds (I), (VI), and biphenyl dimer of 2-methoxy-l,4-benzoquinone (DC). This indicates that GOG-Dimer also suffers the cleavage of -0-4 ether linkage via the alkyl-phenyl cleavage. 

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