An efficient,chromium-catalyzed highly enantioselective preparation of protected 1,3-diols has been achieved.In the presence of a chiral chromium catalyst using the carbazole-based bisoxazoline as the chiral ligand,a variety of optically pure 1,3-diols were synthesized in 34%-87%yields with up to 98%ee.The benzyl as well as silyl ethers were suitable substitutions for the hydroxyl group.Meanwhile,aromatic,aliphatic and α,β-unsaturated aldehydes are well tolerated under the mild reaction conditions. An efficient, chromium-catalyzed highly enantioselective preparation of of 1,3-diols has been achieved. The presence of a chiral chromium catalyst using the carbazole-based bisoxazoline as the chiral ligand, a variety of optically pure 1,3-diols were synthesized in 34% -87% yields with up to 98% ee. The benzyl as well as silyl ethers were suitable substitutions for the hydroxyl group.Meanwhile, aromatic, aliphatic and α, β-unsaturated aldehydes are well tolerated under the mild reaction conditions .