Formic acid phenyl ester

Formic acid phenyl ester 73.1 2 305.9 8 Derived from 1994PED... 

Methyl, ethyl, n-propyl, isopropyl, n-hutyl, benzyl, cyclohexyl esters of formic, acetic, oxalic, succinic, tartaric, citric, benzoic, salicylic (and other substituted benzoic acids), phthalic and cinnamic acids phenyl esters of acetic, benzoic and salicylic acids. 

FORMIC ACID, CINNAMYL ESTER 3-PHENYL-2-PROPEN-l-YL FORMATE... 

Cinnamyl methanoate Formic acid, cinnamyl ester 3-Phenylallyl methanoate 3-Phenyl-2-propen-1-yl formate... 

All the radicals concerned are important in oxidation processes of aromatic molecules, and this paper aims to offer a starting point for the thermochemical dissection of such oxidation processes. It is also hoped that it may stimulate further investigations of radical thermochemistry, especially in the aromatic field. Areas for fruitful work on bond energies include the formate and carbonate esters, including phenyl formate and phenyl carbonate, and the bond strengths in formic acid itself and in benzaldehyde. 

Reduction of some aromatic keto esters by using the Ru complex (S,S)-39 and a formic acid-N(C2H5)3 mixture gives the corresponding chiral alcohols with up to 95% ee (Scheme 1.90) [293,321]. The optical yield is increased in the order of a-, [3-, and 8-keto esters. A Ru complex prepared from [RuCl2(p-cymene)]2 and (S,R)-22 promotes reduction of ethyl 3-phenyl-3-oxopropanoate in 2-propanol containing a base to afford the S alcohol with 94% ee [329],... 

Another interesting convertible isocyanide, 2-(t-butyldimethylsilyloxymethyl)-phenyl isocyanide 21 was used by Linderman and co-workers [10] in a reaction with formic acid, benzylamine, and benzaldehyde to afford the Ugi adduct 22, which, upon acid treatment followed by basification, underwent O-desilylation and amide/ester exchange to afford the ester 23 (Scheme 2.8). A remarkable feature of 21 is the high diastereoselectivity observed when it is employed in combination with chiral aminosugar derivatives in Ugi-4CR [10]. 

From Acetic and Formic Acids.—A fourth method of synthesis from acetic and formic acid esters will be explained in detail in connection with the next acid. All of these syntheses prove the constitution of pyro-racemic acid as an a//>/fa-ketone acid as given. It may be considered as aceto formic acid which is in accord with the fourth method of synthesis. As an acid it forms all acid derivatives and as a ketone it undergoes the characteristic ketone reactions, e.g.y with phenyl hydrazine and hydroxyl amine. On heating to 150° with dilute sulphuric acid in a sealed tube it loses carbon dioxide and yields acet aldehyde. 

Phenyl chlorothionoformate Formic acid, chlorothio-, O-phenyl ester (8) Carbonochloridothioic acid, O-phenyl ester (9) (1005-56-7)... 

This volume begins with two procedures in the area of catalytic asymmetric synthesis. The first procedure describes the synthesis of (R)-2-Dl PH ENYLPHOSPHI NO-2 -METHOXY-1,1 -BINAPHTHYL (MOP), a chiral ligand that has proven very useful in palladium-catalyzed hydrosilylation of olefins and palladium-catalyzed reduction of allylic esters by formic acid. The next procedure describes the catalytic asymmetric synthesis of nitroaldols using a chiral LANTHANUM-LITHIUM-BINOL COMPLEX, illustrated by the synthesis of (2S,3S)-2-NITRO-5-PHENYL-1,3-PENTANEDIOL. 

Rate differences have been monitored in the reaction of formic acid with various Cr species, and in the presence of an oxalic acid-formic acid mixture simultaneous oxidation occurs at a rate much greater than with either of the substrates under identical conditions. This has been observed previously by Rocek and his co-workers (see previous Reports) and is consistent with a three-electron oxidation of a mixed formate-oxalate ester. The oxidation of methyl phenyl sulphoxides in aqueous acetic acid is first order with respect both to substrate and to [Cr ], the suggested mechanism involving a one-electron... 

In 1973, Hey and Arpe first reported Pd-catalyzed hydrogenolysis of aUyUc esters, phenyl ether, and amine using formic acid as a hydride source. In their attempt to prepare allylic formates from various allylic acetates by Pd-catalyzed transesterification, they obtained a mixture of alkenes instead of the expected allylic formatesf (Scheme 2). 

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