2-phenoxycarbonyl

Phenoxycarbonyl)phenol, Phenyl salicylate Aliphatic, Cycloaliphatic and Aromatic Ethers, Thioethers, and Acetals 41.9 0.346... 

Liquid carbon suboxide added to a solution of 2-ethylaminothiarole in anhydrous ether at 0°C gives immediate formation of a white precipitate of the mesoionic xanthine (121) (R=H) (130), otherwise prepared by reaction between 2-ethylaminothiazole and phenoxycarbonyl isocyanate (see p. 65 and Ref. 304),... 

Tricarbonyl[>74-l-(phenoxycarbonyl)-l//-azepine]iron(0) [48% mp 108-109=C (dec.)] and tricarbonyl(i/4-1-mesyl-lW-azepine)iron(O) (69% mp 94-96 C) were prepared similarly. 

Phenoxycarbonyl- 192 2-Piperidino-l-(2-cyan-athyl)- 560 2-Piperidino-l-methyl- 560 Propyl- 69f. 

Itahara has also found that the phenylation of A-aroylpyrroles can be achieved using Pd(OAc>2 [30, 31]. Although A-benzoylpyrrole (22) yields a mixture of diphenylpyrrole 23, cyclized pyrrole 24, and bipyrrolyl 25 as shown, l-(2,6-dichlorobenzoyl)pyrrole 26 gives the diphenylated pyrrole 27 in excellent yield. The IV-aroyl groups are readily cleaved with aqueous alkali and the arylation reaction also proceeds with p-xylene and p-dichlorobenzene. Unfortunately, N-methyl-, iV-acetyl-, and A-(phenoxycarbonyl)pyrroles give complex mixtures of products. 

Scheme 6.83 Product range of the 65-catalyzed asymmetric Petasis-type 2-vinylation of N-phenoxycarbonyl quinolinium salts.

Other sources of C-4 include the Vilsmeier reagent formed from POCI3 and DMF, which gives 2,4-dichloroquin-azolines 839 with A -aryl-A -(phenoxycarbonyl)urea derivatives 838 <1998BML2891>. 

In the phenoxycarbonyl radical, the same bond is further weakened by the electronic rearrangements accompanying the formation of the products ... 

Protection of amino compounds by the 2,4-bis(methylthio)phenoxycarbonyl residue [266] converts them into acid stable entities. Removal of the protecting group can be achieved through oxidation at sulfur such that the resulting bissulfone provides conjoint pathways for ready fragmentation. 

Rhodium(ll)-catalyzed decomposition of vinyldiazoacetates 84 in the presence of 7V-phenoxycarbonyl-l,2-dihydro-pyridine 85 gives 6-azabicyclo[3.2.2]nonanes 86 (Equation 3). The overall reaction is a [3+4] cycloaddition which occurs by a tandem cyclopropanation/Cope rearrangement <1998TL2707, 2001JOC7898>. 

S-[(4-chlor-phenoxycarbonyl)-methylester]-0,0-diethylester XII/2, 695 S-f(4-chlor-phenoxy)-N-(4-chlor-phenylimino-methyl]- -O.O-diethylester XII/2, 824 S-[N -(4-chlor-phenyl)-N,N-dimethyl-amidino]- -0,0-diethylester XII/2, 824... 

Phenoxy-benzol- XII/1, 348 Phenoxycarbonyl-methan- -diethylester XH/1, 444 2-Phenoxy-ethan- XII/1, 354f. 

Attempts to synthesize bis[phenoxycarbonyl] tellurium failed only tellurium and diphenyl carbonate were obtained1. 

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