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1-(2-nitro-3-methoxyphenyl)-2-nitroethene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

16990-40-2

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16990-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16990-40-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,9 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 16990-40:
(7*1)+(6*6)+(5*9)+(4*9)+(3*0)+(2*4)+(1*0)=132
132 % 10 = 2
So 16990-40-2 is a valid CAS Registry Number.

16990-40-2Relevant academic research and scientific papers

Synthesis of indoles from o,β-dinitrostyrenes via indium/acetic acid-mediated Reductive heterocyclizations

Lee, Geunsoo,Choi, Jaehwan,Lee, Byung Min,Kim, Byeong Hyo

, p. 155 - 162 (2013/03/13)

Reductive heterocyclization reactions of various 1-nitro-2-(2-nitroaryl) ethenes to indoles were investigated. In the presence of indium/AcOH in toluene or benzene, 1-nitro-2-(2-nitroaryl)ethenes were cyclized to give corresponding indoles in good yields.

Studies of new indole alkaloid coupling methods for the synthesis of haplophytine

Rege, Pankaj D.,Tian, Yuan,Corey

, p. 3117 - 3120 (2007/10/03)

The two novel bisindole alkaloid structures shown can be synthesized in a few steps from the canthiphytine derivative 9.

A general large scale synthesis of 2-alkyl-7-methoxyindoles

Chen, Bang-Chi,Hynes Jr., John,Pandit, Chennagiri R.,Zhao, Rulin,Skoumbourdis, Amanda P.,Wu, Hong,Sundeen, Joseph E.,Leftheris, Katerina

, p. 951 - 960 (2007/10/03)

A general method has been developed for the large scale synthesis of 2-alkyl-7-methoxyindoles and analogs. This method involves an efficient preparation of the key intermediates, 1-(2-nitroaryl)-2-nitroalkanols and 1-(2-nitroaryl)-2-nitroalkenes, and affords 2-alkyl-7-methoxyindoles and analogs in 3 steps with good overall yields.

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