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Benzene, 1,1'-(diethoxymethylene)bis-, also known as 1,1'-(Diethoxymethylene)bisbenzene or DEBB, is an organic compound with the chemical formula C16H22O2. It is a colorless liquid at room temperature and is soluble in most organic solvents. DEBB is primarily used as a chemical intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals. It is also employed as a solvent and a reagent in various chemical reactions. Due to its potential health and environmental risks, DEBB is classified as a hazardous substance and requires proper handling and disposal.

6397-77-9

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6397-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6397-77-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,9 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6397-77:
(6*6)+(5*3)+(4*9)+(3*7)+(2*7)+(1*7)=129
129 % 10 = 9
So 6397-77-9 is a valid CAS Registry Number.

6397-77-9Relevant academic research and scientific papers

Practical acetalization and transacetalization of carbonyl compounds catalyzed by recyclable PVP-I

Cao, Fu-Rong,Lu, Guangying,Ren, Jiangmeng,Wang, Di,Zeng, Bu-Bing

, (2021/06/21)

A novel PVP-I catalyzed acetalizations/transacetalizations of carbonyl compounds has been developed processing with a mild and easy handling fashion. Different types of Acyclic and cyclic acetals were prepared from carbonyl compounds or their acetals successfully. Further applications of newly developed catalytic combination were testified. This protocol featured with simplicity of operation, mild reaction condition, short reaction time, recyclable of catalyst and broad substrates scope with excellent yields.

A facile procedure for acetalization of aldehydes and ketones catalyzed by cerium(III) trifluoromethanesulfonate

Ono, Fumiaki,Inatomi, Yoshiko,Tada, Yuusuke,Mori, Masaki,Sato, Tsuneo

experimental part, p. 96 - 97 (2009/11/30)

Aldehydes and ketones are readily protected in the presence of trialkyl orthoformate and a catalytic amount of cerium(III) trifluoromethanesulfonate under mild conditions to give the corresponding acetals in good to excellent yields. Due to the mild reaction conditions, this method is compatible with acid-sensitive substrates. Copyright

Iron(III) tosylate in the preparation of dimethyl and diethyl acetals from ketones and β-keto enol ethers from cyclic β-diketones

Mansilla, Horacio,Afonso, Maria M.

, p. 2607 - 2618 (2008/12/22)

An efficient method for conversion of ketones to their corresponding dimethyl and diethyl acetals and of cyclic β-diketones into β-keto enol ethers using Fe(OTs)3 as a catalyst is described. Copyright Taylor & Francis Group, LLC.

Gallium triiodide as a highly efficient and mild catalyst for the diethyl acetalization of carbonyl compounds

Ding, Jin-Chang,Xu, Rong,Liu, Miao-Chang,Chen, Xi-An,Wu, Hua-Yue

experimental part, p. 566 - 568 (2009/07/18)

Diethyl acetals were obtained from carbonyl compounds in good to excellent yields under mild reaction conditions in the presence of triethyl orthoformate and a catalytic amount of gallium triiodide in anhydrous ethanol.

Simple method for the preparation of dimethyl acetals from ketones with montmorillonite K 10 and p-toluenesulfonic acid

Mansilla, Horacio,Regas, David

, p. 2195 - 2201 (2007/10/03)

A simple method for conversion of ketones to their corresponding dimethyl acetals using montmorillonite K 10 and p-toluenesulfonic acid as acidic cocatalysts under very mild reaction conditions is described. Copyright Taylor & Francis Group, LLC.

An efficient and versatile procedure for the synthesis of acetals from aldehydes and ketones catalyzed by lithium tetrafluoroborate

Hamada, Nao,Kazahaya, Kiyoshi,Shimizu, Hisashi,Sato, Tsuneo

, p. 1074 - 1076 (2015/10/07)

Acetals are obtained in good to excellent yields by treatment of aldehydes and ketones with trialkyl orthoformate and the corresponding alcohol in the presence of a catalytic amount of lithium tetrafluoroborate. Due to the mild reaction conditions, this method is compatible with acid-sensitive substrates.

2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO) as a versatile, efficient, and chemoselective catalyst for the acetalization and transacetalization of carbonyl compounds, the preparation of acetonides from epoxides and acylals (1,1-diacetates) from aldehydes

Firouzabadi, Habib,Iranpoor, Nasser,Shaterian, Hamid Reza

, p. 2195 - 2205 (2007/10/03)

The efficient and chemoselective preparation of acetals and ketals from carbonyl compounds, transacetalization reactions, the conversion of epoxides to acetonides, and the preparation of acylals from aldehydes in the presence of catalytic amounts of 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TABCO) are described.

Tetrabutylammonium tribromide (TBATB) as an efficient generator of HBr for an efficient chemoselective reagent for acetalization of carbonyl compounds

Gopinath, Rangam,Haque, Sk. Jiaul,Patel, Bhisma K.

, p. 5842 - 5845 (2007/10/03)

Acyclic and cyclic acetals of various carbonyl compounds were obtained in excellent yields under a mild reaction condition in the presence of trialkyl orthoformate and a catalytic amount of tetrabutylammonium tribromide (TBATB) in absolute alcohol. Chemoselective acetalization of an aldehyde in the presence of ketone, unsymmetrical acetal formation, shorter reaction times, mild reaction conditions, the stability of acid-sensitive protecting groups, high efficiencies, facile isolation of the desired products, and the catalytic nature of the reagent make the present methodology a practical alternative.

2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) as a highly efficient and mild catalyst for diethyl acetalization of carbonyl compounds

Karimi, Babak,Ashtiani, Ashraf Miri

, p. 1199 - 1200 (2007/10/03)

Various types of structurally different carbonyl compounds in the presence of ethyl orthoformate (EtO)3CH could be efficiently converted to their diethyl acetals by using a catalytic amount (1-3 mol%) of DDQ under mild reaction conditions.

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