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181780-66-5

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181780-66-5 Usage

General Description

1-bromo-2-(dimethoxymethyl)-4-methoxybenzene is a chemical compound with the molecular formula C10H13BrO3. It is a substituted bromobenzene with two methoxy groups and a dimethoxymethyl group attached to the benzene ring. This chemical is used as an intermediate in the synthesis of pharmaceuticals and agrochemicals. It can also be used in organic synthesis and as a reagent in chemical reactions. The compound is a colorless to pale yellow liquid with a slightly sweet odor. It is important to handle this compound with care, as it is toxic if ingested or inhaled, and can cause skin and eye irritation upon contact.

Check Digit Verification of cas no

The CAS Registry Mumber 181780-66-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,8 and 0 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 181780-66:
(8*1)+(7*8)+(6*1)+(5*7)+(4*8)+(3*0)+(2*6)+(1*6)=155
155 % 10 = 5
So 181780-66-5 is a valid CAS Registry Number.

181780-66-5Relevant articles and documents

Structure revision of medermycin/lactoquinomycin a and of related C-8 glycosylated naphthoquinones.

Leo, Pierre-Marc,Morin, Christophe,Philouze, Christian

, p. 2711 - 2714 (2002)

[reaction: see text] On the basis of chemical and spectral data, the structure of the medermycin/lactoquinomycin A has been revised, which has also led to the revision of related C-glycosylated naphthoquinone antibiotics such as lactoquinomycin B, menoxymycins A and B, G15-F, and G15-G.

Catalytic Synthesis of 1 H-2-Benzoxocins: Cobalt(III)-Carbene Radical Approach to 8-Membered Heterocyclic Enol Ethers

De Bruin, Bas,De Zwart, Felix J.,Li, Zirui,Mathew, Simon,Wolzak, Lukas A.,Zhou, Minghui

supporting information, p. 20501 - 20512 (2021/12/03)

The metallo-radical activation of ortho-allylcarbonyl-aryl N-arylsulfonylhydrazones with the paramagnetic cobalt(II) porphyrin catalyst [CoII(TPP)] (TPP = tetraphenylporphyrin) provides an efficient and powerful method for the synthesis of novel 8-membered heterocyclic enol ethers. The synthetic protocol is versatile and practical and enables the synthesis of a wide range of unique 1H-2-benzoxocins in high yields. The catalytic cyclization reactions proceed with excellent chemoselectivities, have a high functional group tolerance, and provide several opportunities for the synthesis of new bioactive compounds. The reactions are shown to proceed via cobalt(III)-carbene radical intermediates, which are involved in intramolecular hydrogen transfer (HAT) from the allylic position to the carbene radical, followed by a near-barrierless radical rebound step in the coordination sphere of cobalt. The proposed mechanism is supported by experimental observations, density functional theory (DFT) calculations, and spin trapping experiments.

Heterocyclization involving benzylic C(sp3)-H functionalization enabled by visible light photoredox catalysis

Pandey, Ganesh,Laha, Ramkrishna,Mondal, Pradip Kumar

, p. 9689 - 9692 (2019/08/15)

A general and efficient method for heterocyclization involving benzylic C(sp3)-H functionalization enabled by visible light photoredox catalysis to access a wide range of structurally diverse oxygen as well as nitrogen heterocycles up to a gram scale is reported. The potential application of this new methodology is demonstrated by the total synthesis of (-)-codonopsinine and (+)-centrolobine. Herein it is proposed that selectfluor, unlike a fluorinating reagent, acts as an oxidative quencher and a hydrogen radical acceptor.

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