1071508-40-1Relevant articles and documents
Α-hydroxyacid salt
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Paragraph 0049-0052, (2018/02/14)
PROBLEM TO BE SOLVED: To provide a novel method for manufacturing a salt of α-hydroxy acid as an intermediate for synthesizing α-hydroxy acid derivatives which promotes carboxylation promptly by the COsupplementation reaction even if the substrate having
Stereospecific palladium/copper cocatalyzed cross-coupling of α-alkoxy- and α-aminostannanes with acyl chlorides
Ye,Bhatt,Falck
, p. 1 - 5 (2007/10/02)
Stille-type cross-coupling between α-alkoxy(amino)stannanes and acyl chlorides affords α-hetero-substituted ketones in moderate to good yields when cocatalyzed by Pd and Cu(I) salts. The reaction is applicable to a wide range of tin compounds, especially those bearing α-electron-withdrawing groups such as benzoyloxy or acetyloxy, although some ethers (e.g., MOM) are also satisfactory. Aromatic acid chlorides give the best yields. Coupling of chiral α-alkoxystannanes, readily available by BINAL-H asymmetric reduction of acylstannanes, proceeds with retention of configuration.