223137-71-1

Upstream product

• 591-31-1 3-methoxy-benzaldehyde 
• 116836-15-8 1,5-bis(3-methoxyphenyl)-1,4-pentadien-3-one 
• 458533-66-9 (1E,4E)-1,5-bis(3-methoxyphenyl)penta-1,4-dien-3-one 

Downstream Products

• 223137-87-9 2,2′,3,3′-tetrahydro-1,1′-spirobi[indene]-7,7′-diol 
• 223137-87-9 (R)-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-7,7'-diol 
• 223137-87-9 (R)-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-7,7'-diol 

Relevant academic research and scientific papers

Chiral oligomers of spiro-salencobalt(III)X for catalytic asymmetric cycloaddition of epoxides with CO2

Several new chiral oligomers of spiro-salenCo(III)X (spiro = 1.1′-spirobiindane-7.7′-diol) complexes have been designed, synthesized, and characterized by nuclear magnetic resonance (NMR), infrared (IR), and elemental analyses, in which, the chiral spiro moieties are first introduced into a scaffold of chiral salenCo catalysts. They were used to catalyze the asymmetric cycloaddition of epoxides with carbon dioxide. Under very mild reaction conditions, a kinetic resolution of racemic epoxides with CO2 was smoothly initiated by these chiral oligomer catalysts with good enantioselectivities, which can be attributed to the match effect between chiral backbones of salen and spiro. High stability and easy recyclability are their major advantages.

Chiral ligand 1,1'-spirobiindane-7,7'-diol synthesis method

The present invention discloses a chiral ligand 1,1'-spirobiindane-7,7'-diol synthesis method, wherein 3-methoxybenzaldehyde is adopted as a starting raw material, and hydroxyaldehyde condensation, hydrogenation reducing, bromination, dehydration cyclizat

1,1'-Spirobiindane-7,7'-diol: A novel, C2-symmetric chiral ligand

A novel, C2-symmetric chiral diol (16) was prepared in six steps from m-anisaldehyde and resolved via its bis-L-menthoxycarboxylate.