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84033-94-3

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84033-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84033-94-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,3 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 84033-94:
(7*8)+(6*4)+(5*0)+(4*3)+(3*3)+(2*9)+(1*4)=123
123 % 10 = 3
So 84033-94-3 is a valid CAS Registry Number.

84033-94-3Relevant articles and documents

Amphiphilic Indoles as Efficient Phase-Transfer Catalysts for Bromination in Water

Ke, Zhihai,Liang, Xiaochen,Xu, Yongyuan,Zhang, Qingyu

, (2022/05/20)

Brominated compounds are important, but they are usually prepared in organic solvents. Here, efficient amphiphilic indole-based phase-transfer organocatalysts were developed for environmentally benign bromination reactions in water. As test reactions, hydroxybromination of olefins and aromatic bromination could be conducted in a greener and more sustainable manner compared with methods using organic solvents, producing the corresponding bromides in good yields. Some pure products could be obtained without column chromatography.

I2O5-mediated bromohydroxylation and dibromination of olefins using KBr in water

Wang, Yajun,Wang, Jinxi,Xiong, Yun,Liu, Zhong-Quan

supporting information, p. 2734 - 2737 (2014/05/06)

An efficient and green bromohydroxylation and dibromination of various olefins mediated by I2O5 has been developed in this work. A series of olefins gave the corresponding α-bromo-alcohols and dibromides as the major products using KBr as the brominating reagent in aqueous medium at room temperature. The diastereo- and regio-selectivities are extremely high.

Green approach for the conversion of olefins into vic-halohydrins using N-halosuccinimides in ionic liquids

Yadav,Reddy,Baishya, Gakul,Harshavardhan,Janardhana Chary,Gupta, Manoj Kumar

, p. 3569 - 3572 (2007/10/03)

Alkenes undergo smooth bromo- and iodohydroxylation with N-bromo- and N-iodosuccinimides/water, respectively, using the air and moisture stable ionic liquid [bmim]BF4 as a novel recyclable reaction medium in high to quantitative yields. N-Halosuccinimides show enhanced reactivity in ionic liquids thereby reducing the reaction times and improving the yields considerably.

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