Allyl formate

As a further application of the reaction, the conversion of an endocyclic double bond to an c.xo-methylene is possible[382]. The epoxidation of an cWo-alkene followed by diethylaluminum amide-mediated isomerization affords the allylic alcohol 583 with an exo double bond[383]. The hydroxy group is eliminated selectively by Pd-catalyzed hydrogenolysis after converting it into allylic formate, yielding the c.ro-methylene compound 584. The conversion of carvone (585) into l,3-disiloxy-4-methylenecyclohexane (586) is an example[382]. 

The method has been successfully applied to steroids. The fnms AB ring junction in 612 can be generated cleanly from the. i-allylic formate 611 the cis junction in 614 is formed by the hydrogenolysis of the a-allylic formate 613... 

Allyl formate, physical properties, 6 292t Allyl glycidyl ester (AGE), physical properties of, 2 244, 246 Allyl glycidyl ether, 2 267-268 Allylic derivatives, hydroboration of, 73 641... 

The synthesis of menthol is given in the reaction scheme, Figure 5. 6. The key reaction [2] is the enantioselective isomerisation of the allylamine to the asymmetric enamine. It is proposed that this reaction proceeds via an allylic intermediate, but it is not known whether the allyl formation is accompanied by a base-mediated proton abstraction or hydride formation. 

Methyl formate Ethyl formate. n-Propyl formate iso-Propyl formate. n-Butyl formate iso-Butyl formate sec.-Butyl formate. tert.-Butyl formate. n-Amyl-formate iso-Amyl formate n-Hexyl formate cycfoPentyl formate. cycioHexyl formate Allyl formate. ... 

The use of mixtures of glycerol and formic acid for the preparation of allyl derivatives (allyl ch oride and allyl formate) has recently been described by Aschan.2 Allyl alcohol has also been isolated from crude wood alcohol.3 A special method for titrating allyl alcohol has been described.4... 

A. Butene Isomerization and ti-Allyl Formation from Dienes and HNiL4... 

Allyl Chloride (3-chioropropene-1). [CAS 107-05-1]. Ally I chloride can be synthesized by reaction of allyl alcohol with HCI or by treatment of allyl formate with HCI in the presence of a catalyst (ZnCLV Commercial production is by chlorination of propylene at high temperatures, about 500°C. using a large excess of propylene. It is used in the synthesis of... 

In the absence of base, vinylmercury reagents and lithium tetrachloropalladate(II) react with alkenes to form ir-allylpalladium complexes arising from addition of the vinylpalladium chloride to the alkene followed by palladium hydride elimination, a reverse readdition and rr-allyl formation (equation 10).31... 

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