摘要:
A process for producing cyclopentadienyl metal salts which comprises reacting a cyclopentadiene derivative with a metal hydride in the presence of an amine compound; and a process for producing cyclopentadiene derivatives represented by general formula (3) by utilizing this reaction. In said formula, A represents a Group 16 element of the Periodic Table; B represents a Group 14 element; R to R each represents alkyl, etc.; and R represents a hydrocarbon group or a trisubstituted silyl. By using these processes, not only a variety of cyclopentadienyl metal salts but cyclopentadiene derivatives can be produced in high yields with high conversions without using an expensive reagent or low-temperature facilities.
摘要:
A process for producing an optically active 2-alkyl-1,1,3-trialkoxycarbonylpropane (2), comprising a step of asymmetric hydrolysis of 2-alkyl-1,1,3-trialokoxycarbonylpropane (1) by using an enzyme capable of selectively hydrolyzing an ester moiety of either one enantiomer of 2-alkyl-1,1,3-trialkoxycarbonylpropane (1), or by using a culture of a microorganism capable of producing the enzyme or a treated object thereof.