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(1S,5R)-4-(2,4,6-Trimethyl-phenyl)-2-oxa-7-thia-3-aza-bicyclo[3.2.0]hept-3-ene 7,7-dioxide is a complex organic compound with a unique molecular structure. It is characterized by a bicyclic ring system, with one of the rings being a seven-membered azabicyclo ring containing an oxygen atom (oxa) and a sulfur atom (thia). The other ring is a phenyl group, which is substituted with three methyl groups at the 2, 4, and 6 positions. The compound has a chiral center at the 1 and 5 positions, with the (1S,5R) configuration indicating the specific arrangement of atoms around these centers. This molecule is of interest in the field of organic chemistry, potentially for its unique properties or as a building block in the synthesis of more complex molecules.

81650-76-2

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81650-76-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81650-76-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,5 and 0 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81650-76:
(7*8)+(6*1)+(5*6)+(4*5)+(3*0)+(2*7)+(1*6)=132
132 % 10 = 2
So 81650-76-2 is a valid CAS Registry Number.

81650-76-2Downstream Products

81650-76-2Relevant academic research and scientific papers

Experimental and Theoretical Investigation on the Cycloadditions of Nitrile Oxides, Nitrones, and Diazoalkanes with Acyclic Vinyl Sulphones and Thiet 1,1-Dioxide

Benedetti, Pier G. De,Quartieri, Simona,Rastelli, Augusto,Amici, Marco De,Micheli, Carlo De,et al.

, p. 95 - 100 (2007/10/02)

Diazoalkanes, nitrile oxides, and nitrones cycloadd thiet 1,1-dioxide showing regiochemical characteristics markedly different from those observed for acyclic vinyl sulphones.The charge-transfer stabilization energy, calculated according to the Klopman-Salem pertubational approach in the CNDO/2 approximation, is able to account for the experimantal trends of the isomer ratios.An analysis of the calculations performed for cis-syn-vinyl sulphones explains the change of regiochemistry in the reactions of thiet 1,1-dioxide as due to its blocked cis-syn-structure which does not happen in the 'open' vinyl sulphones.Unsuccessful predictions obtained with the frontier orbital approximation are discussed.

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