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296797-76-7

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296797-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 296797-76-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,6,7,9 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 296797-76:
(8*2)+(7*9)+(6*6)+(5*7)+(4*9)+(3*7)+(2*7)+(1*6)=227
227 % 10 = 7
So 296797-76-7 is a valid CAS Registry Number.

296797-76-7Relevant articles and documents

Dehydrogenation of N-Heterocycles by Superoxide Ion Generated through Single-Electron Transfer

Huang, Yuan-Qiong,Song, Hong-Jian,Liu, Yu-Xiu,Wang, Qing-Min

, p. 2065 - 2069 (2018/01/27)

Nitrogen-containing heteroarene motifs are found in numerous pharmaceuticals, natural products, and synthetic materials. Although several elegant methods for synthesis of these compounds through dehydrogenation of the corresponding saturated heterocycles have been reported, some of the methods are hampered by long reaction times, harsh conditions, and the need for catalysts that are not readily available. This work reports a novel method for dehydrogenation of N-heterocycles. Specifically, O2.? generated in situ acts as the oxidant for N-heterocycle substrates that are susceptible to oxidation through a hydrogen atom transfer mechanism. This method provides a general, green route to N-heteroarenes.

Efficient and practical one-pot conversions of n- tosyltetrahydroisoquinolines into isoquinolines and of N-tosyltetrahydro-β- carbolines into β-carbolines through tandem β-elimination and aromatization

Dong, Jing,Shi, Xiao-Xin,Yan, Jing-Jing,Xing, Jing,Zhang, Qiang,Xiao, Sen

experimental part, p. 6987 - 6992 (2011/02/24)

An efficient, practical, and general method for conversions of N-tosyltetrahydroisoquinolines (N-tosyl-THIQs) into isoquinolines and of N-tosyltetrahydro-β-carbolines (N-tosyl-THBCs) into β-carbolines is described. Treatment of N-tosyl-THIQs or N-tosyl-THBCs with base in dimethyl sulfoxide afforded dihydroisoquinolines or dihydro-β-carbolines as intermediates, and these were then oxidized in situ by molecular oxygen to furnish isoquinolines or β-carbolines in good to high yields. Both one-pot conversions occurred through tandem β-elimination and aromatization. An efficient method for conversions ofN-tosyltetrahydroisoquinolines (N-tosyl-THIQs) and N-tosyltetrahydro-β-carbolines (N-tosyl-THBCs) into isoquinolines and β-carbolines is described. Treatment ofN-tosyl-THIQs or N-tosyl-THBCs with base affords dihydroisoquinolines or dihydro-β- carbolines. These can be oxidized in situ by molecular oxygen to furnish isoquinolines or β-carbolines. Copyright

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