Diastereoselective addition (η2-alkyne)Ti(O-i-Pr)2 complexes to 2,3-O-isopropylideneglyceraldehyde
摘要:
The title alkyne-titanium complexes, prepared from propargyl ethers, Ti(O-i-Pr)(4), and i-PrMgCl, reacted with 2,3-O-isopropylideneglyceraldehyde in good to excellent diastereoselectivities of up to 94:6 to afford the anti-adducts, which are useful precursor for the preparation of optically active polyhydroxy compounds. (C) 1997 Elsevier Science Ltd.
Diastereoselective addition (η2-alkyne)Ti(O-i-Pr)2 complexes to 2,3-O-isopropylideneglyceraldehyde
摘要:
The title alkyne-titanium complexes, prepared from propargyl ethers, Ti(O-i-Pr)(4), and i-PrMgCl, reacted with 2,3-O-isopropylideneglyceraldehyde in good to excellent diastereoselectivities of up to 94:6 to afford the anti-adducts, which are useful precursor for the preparation of optically active polyhydroxy compounds. (C) 1997 Elsevier Science Ltd.