870273-44-2

Basic information

• Product Name: 1H-Benz[e]inden-1-one, 2,3-dihydro-2-methyl-, (2S)-
• CAS NO: 870273-44-2
• Molecular Formula: C14H12O
• Mol File: 870273-44-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1H-Benz[e]inden-1-one, 2,3-dihydro-2-methyl-, (2S)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Benz[e]inden-1-one, 2,3-dihydro-2-methyl-, (2S)-(870273-44-2)
• EPA Substance Registry System: 1H-Benz[e]inden-1-one, 2,3-dihydro-2-methyl-, (2S)-(870273-44-2)

Safety Data

• Hazardous Substances Data: 870273-44-2(Hazardous Substances Data)

Upstream product

• 66-99-9 β-naphthaldehyde 
• 150096-57-4 2-methyl-2,3-dihydro-cyclopenta[a]naphthalen-1-one 
• 106359-68-6 (E)-2-methyl-3-(naphthalen-2-yl)acrylic acid 
• 107777-19-5 2-methyl-3-naphthalen-2-ylpropionic acid 
• 870273-38-4 4,5-Dichloro-2-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]decane-4-carbonyl)-benzoic acid (1S,2S)-2-methyl-2,3-dihydro-1H-cyclopenta[a]naphthalen-1-yl ester 
• 870273-39-5 4,5-Dichloro-2-((1S,5R,7R)-10,10-dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]decane-4-carbonyl)-benzoic acid (1R,2S)-2-methyl-2,3-dihydro-1H-cyclopenta[a]naphthalen-1-yl ester 
• 870273-42-0 (1S,2S)-(+)-2-methyl-2,3-dihydro-1H-benz[e]inden-1-ol 
• 870273-43-1 (1R,2S)-(-)-2-methyl-2,3-dihydro-1H-benz[e]inden-1-ol 

Relevant articles and documents

A new model of light-powered chiral molecular motor with higher speed of rotation, part 1 - Synthesis and absolute stereostructure

To develop a molecular motor with a higher speed of rotation, a new model light-powered chiral molecular motor 2 of five-membered ring type was designed, and the motor rotation isomers (-)-2a and (-)-2c were directly synthesized in enantiopure forms for the first time from the ketone (+)-8. The precursor alcohols 9 and 10 were enantioresolved by the camphorsultam-dichlorophthalic acid (CSDP acid; 3) method, and their absolute configurations were determined by X-ray crystallographic analysis of the CSDP ester (-)-11b and chemical correlations. The enantiopure ketone (S)-(+)-8 formed from (1S,2S)-(+)-9 or (1R,2S)-(-)-10 was subjected to the McMurry reaction with TiCl 3/LiAlH4, yielding the motor rotation isomers [CD(-)257.8]-(2S,2′S)-(M,M)-(E)-(-)-2a and [CD(-)270.0]-(2S,2′S)-(M, M)-(Z)-(-)-2c. These studies enabled us unambiguously to determine the absolute stereo-structure of the motor 2, which is of critical importance for control over the direction of motor rotation. Wiley-VCH Verlag GmbH & Co. KGaA, 2005.