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1-(3,4-dimethoxyphenyl)-6,7-dimethoxy-1,4-dihydro-3H-isochromen-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

154502-82-6

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154502-82-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 154502-82-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,5,0 and 2 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 154502-82:
(8*1)+(7*5)+(6*4)+(5*5)+(4*0)+(3*2)+(2*8)+(1*2)=116
116 % 10 = 6
So 154502-82-6 is a valid CAS Registry Number.

154502-82-6Downstream Products

154502-82-6Relevant articles and documents

Bsi(OTf)3-mediated tandem annulation of 1-aryl isochroman-3-ones with oxygenated arenes: One-pot synthesis of polyoxygenated homotriptycenes

Chang, Meng-Yang,Lin, Chun-Yi,Chen, Shin-Mei,Hsiao, Yu-Ting

, p. 4733 - 4742 (2021)

Bi(OTf)3 (bismuth triflate)-mediated one-pot tandem annulation of oxygenated 1-aryl isochroman-3-ones with oxygenated arenes provides polyoxygenated homotriptycenes in moderate to good yields in MeNO2 at reflux (101 °C) for 10 h under an air atmosphere and easy-operational conditions via intermolecular and intramolecular Friedel-Crafts type procedures. A plausible mechanism is proposed and discussed. This protocol provides a highly effective ring-closure via three carbon-carbon (C-C) bond formations.

Trifluoroacetic Anhydride Mediated One-Pot Synthesis of 1-Aryl Isochroman-3-ones via the Carboxy-Pictet-Spengler Reaction

Chang, Meng-Yang,Chen, Shin-Mei,Hsiao, Yu-Ting

, p. 11687 - 11698 (2019/10/02)

In this paper, a novel and open-vessel route for the facile-operational synthesis of 1-aryl isochroman-3-ones is described via (CF3CO)2O (trifluoroacetic anhydride, TFAA)-mediated intermolecular (4 + 2) annulation of oxygenated arylacetic acids with arylaldehydes or ketones under mild reaction conditions. A plausible mechanism is proposed and discussed herein. Various reaction conditions are investigated for efficient transformation under an environmentally friendly one-pot carboxy-Pictet-Spengler reaction.

A new synthesis of 3-isochromanone derivatives based on the reaction of o-acylbenzyllithiums with ethyl chloroformate

Kobayashi,Mannami,Kawakita,Tokimatsu,Konishi

, p. 582 - 585 (2007/10/02)

A new method for the preparation of 3-isochromanone derivatives is reported. The method consists of the ethoxycarbonylation of o-acylbenzyllithiums with ethyl chloroformate and the subsequent NaBH4 reduction of the resulting o-acylphenylacetic

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