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(3aR*,7aR*)-2,3,3a,4,5,7a-Hexahydro-1H-inden-1-on is a complex organic compound with the molecular formula C10H12O. It is a hexahydro derivative of 1H-inden-1-one, which is a bicyclic aromatic ketone. (3aR*,7aR*)-2,3,3a,4,5,7a-Hexahydro-1H-inden-1-on is characterized by its unique stereochemistry, with the R* configuration at both the 3a and 7a positions. It is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals due to its versatile chemical properties and potential for further functionalization. The compound's structure and reactivity make it a valuable building block in organic synthesis, particularly in the development of novel molecules with potential applications in medicine and other industries.

40954-59-4

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40954-59-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40954-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,9,5 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40954-59:
(7*4)+(6*0)+(5*9)+(4*5)+(3*4)+(2*5)+(1*9)=124
124 % 10 = 4
So 40954-59-4 is a valid CAS Registry Number.

40954-59-4Downstream Products

40954-59-4Relevant academic research and scientific papers

Trimethylsilyl Cyanide - A Reagent for Umpolung, XII. Intramolecular Diels-Alder Reaction of Dienals via Umpolung

Fischer, Klaus,Huenig, Siegfried

, p. 2590 - 2608 (2007/10/02)

Umpolung of dienals 1 and 2 with trimethylsilyl- or triethylsilyl cyanide and reaction with olefinic alkylating reagents 7-10 furnishes products 11-16 in high yields.On heating to 180 deg C these products, containing a diene and a dienophilic moiety, undergo in most cases quantitative intramolecular Diels-Alder reactions.Since the cycloadducts can be deprotected under very mild conditions, hexahydro-indenones (22, 25) and -naphthalinones (27, 29) can be synthesized for the first time avoiding isomerisation of the double bond.Intramolecular cycloadditions without protected carbonyl groups in the precursor (19, 21) yield hexahydronaphthalinones (30, 34) with conjugated double bonds exclusively, whereas ring closure to hexahydro-indenones (33) fails.Related examples described in the literature suffer from the same drawback.

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