2- diacetoxy 4-methoxyphenyl

Diacetoxy acetophenone 1 -p-Methoxyphenyl-2-benzylamino propane Hydrogen bromide... 

Cyclopropane bonds are susceptible to oxidative cleavage (see Section 2.1.1.2.). Most of the oxidation reactions of activated cyclopropanes involve phenyl-substituted derivatives. When phenylcyclopropane was treated with lead(IV) acetate, 1,3-diacetoxy-l-phenylpropane (63%) and the elimination product cinnamyl acetate (32%) were obtained. The occurrence of traces of l,3-diacetoxy-2-phenylpropane could not be confirmed in later studies. The kinetics of the oxidation of various arylcyclopropanes with lead(IV) acetate, thallium(III) acetate and mercury(II) acetate have been studied. 4-Methoxyphenyl, 4-tolyl, and 4-chlorophenyl derivatives and their meta analogs were treated with these reagents and the rates of reaction and product distributions analyzed. Using lead(IV) acetate, diacetates 1 and cinnamyl acetates 2 were obtained in ratios of about 4 1, whereas thalhum(III) acetate gave the diacetates almost exclusively (see following table). ... 

Figure 5.12a shows a subplot of the side-chain region from a 2D HMQC-TOCSY NMR experiment on an acetylated lignin isolated from the mutant pine, highlighting the new (acetylated) guaiacylpropane-l,3-diols X6, along with the DHCA X5 units. Data from a model compound, l,3-diacetoxy-l-(4-0-benzyl-3-methoxyphenyl)-pro-pane [135], are at the center of the yellow circles and obviously match well. 

C28H2209f 8,11-Diacetoxy-1O-methoxy-7-(4-methoxyphenyl)-6H,7H-(1)-benzopyrano[4,3-b]-(1)-benzopyran-6-one, 46B, 340 C28H28iNaOi2, Phenacylkojate sodium iodide dihydrate, 41B, 392 28 3006 4,10a-Dihydro-7-methoxy-4-oxo-2,9-di-t-butyloxepino[2,3-b]benzofuran-1Oa-yl benzoate, 45B, 364 C28H3flOft, 2,2 -Dihydroxy-7,7,7 ,7 -tetramethyl-exo-2,2 -bi(3,4-ben-zo-9-oxabicyclo[3.3.1]non-3-enyl), 44B, 313 C28HfloOiOf Dibenzo-30-crown-10, 38B, 345... 

Obtained by hydrolysis of l-(2,4-diacetoxy-3,5,6-tri-methoxyphenyl)ethanone (SM) with aqueous 10% sodium hydroxide at r.t. for 10-15 min. SM was obtained by Friedel-Crafts acylation of 2,3,5,6-tetramethoxyphenylacetate(m.p. 97-98°) with acetic anhydride/acetic acid in the presence of excess boron trifluoride at 50-60° for 5 h (65%, m.p. 82-84°) [3316]. 

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