Acyl with organometallic compounds

The Conversion of Acyl Halides to Ketones With Organometallic Compounds ... 

II c., Cl 0 M L- X c Reaction of acyl halides or other acid derivatives with organometallic compounds... 

Acylation of Organometallic Compounds and Heteroatom-Stabilized Carbanions With Carboxylic Acid (Derivative)s Synthesis of Ketones... 

Fig. 6.50. Acylation of organometallic compounds with various Weinreb amides (A, D and E) of carbonic acid.

Acyl and alkyl peroxides and hydroperoxides. with organometallic compounds... 

Ketones. These imidazolium salts (1) are acyl transfer agents that react readily with organometallic compounds to give ketones. 

Similarly, 1-alkylpyrroles, indoles, furans, thiophenes [60], a-picoline [61], enols, malonates [76], and organometallic compounds [56, 62] react with acyl imines of trifluoropyruvates to give derivatives of a-trifluoromethyl a-amino acids... 

Acylation is one of the most fundamental and useful reactions in organic synthesis and is normally achieved by the reaction either with carboxylic acid derivatives and organometallic compounds or with masked acyl anions and aUcyl halides. 

Markl, Lieb and Merz have described the carbanionic addition of lithium or magnesium organometallic compounds to the P atom of 2.4.6-triphenyl-X -phos-phorins, which form deep red s ts 143. These can be alkylated either at the P atom to form X -phosphorins 144 or at C—2 to yield 1,2-dihydro-X -phosphorins 145. Acylation with benzoylchloride affords the 1,4-dihydro-X -phosphorin derivatives 146. Addition of acids or water leads to the synthetically important intermediates 147 which can be reconverted to the X -phosphorin-salts 143 by 2 N NaOH. 

Reaction of halo ketones or diazo ketones with boranes 0-102 Carbonylation of alkyl halides 0-104 Reaction between acyl halides and organometallic compounds 0-105 Reaction between other acid derivatives and organometallic compounds... 

The reaction of CO with some of the preceding organometallic compounds is rapid at room temperature and pressure and insertion of CO into the Ni—C bond results (equation 175).1445 In the case of the np3 ligand the first product isolated is a solid solution of the acyl derivative of nickel(II), [Ni(COR)(np3)]+, and a carbonyl complex of nickel(I), [Ni(CO)(np3)]+, in a 1 1 ratio. When this solid solution is dissolved in THF and EtOH, the pure acyl derivative (190) resulted. The acetyl derivative spontaneously loses CO on exposure to air restoring the original methyl derivative. 

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