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Benzeneacetaldehyde, a-(1-chloroethylidene)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

39831-17-9

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39831-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39831-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,3 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 39831-17:
(7*3)+(6*9)+(5*8)+(4*3)+(3*1)+(2*1)+(1*7)=139
139 % 10 = 9
So 39831-17-9 is a valid CAS Registry Number.

39831-17-9Relevant academic research and scientific papers

Synthesis of β-chloro(trifluoromethyl)acroleins and a specific reaction towards β-aminothiols

Alvernhe, Gerard,Langlois, Bernard,Laurent, Andre,Le Drean, Isabelle,Selmi, Abdelaziz,Weissenfels, Menfred

, p. 643 - 646 (1991)

β-chloro-β-(trifluoromethyl)acroleins and β-chloro-α-(trifluoromethyl)-acrolein have been synthesized through Vilsmeier's reaction. A specific 1,4-addition of the nitrogen atom from β-aminothiols is observed.

Titanacyclobutenes or titanium vinyl carbene complexes? Reactivity of organotitanium species generated by the reaction of γ-chloroallyl sulfides with a titanocene(II) reagent

Shono, Tomohiro,Kurashige, Rie,Mukaiyama, Ryo,Tsubouchi, Akira,Takeda, Takeshi

, p. 4074 - 4080 (2008/02/08)

The reactivity of the organotitanium species generated by the reductive titanation of γ-chloroallyl sulfides with the titanocene(II) reagent [Cp2Ti{P(OEt)3}2] was studied. The organotitanium species formed from α-monosubstituted γ-chloroallyl sulfides reacted with 1,5-diphenylpentan-3-one and styrene to produce conjugated dienes and vinyl cyclopropanes as major products, thus suggesting the formation of vinyl carbene complexes as intermediates. On the contrary, the organotitanium species generated from acyclic β,γ-disubstituted γ-chloroallyl sulfides revealed titanacyclobutene-like reactivity, and their reaction with 1,5-diphenylpentan-3-one produced homoallyl alcohols. These organotitanium species did not react with styrene, but did react with dichlorophenylphosphine to afford phosphacyclobutenes. In the case of β-monosubstituted, γ-monosubstituted, and α,γ- disubstituted γ-chloroallyl sulfides, the organotitanium species reacted with both 1,5-diphenylpentan-3-one and styrene. The former reaction produced homoallyl alcohols and the latter gave vinyl cyclopropanes or unconjugated dienes. These results suggest that titanacyclobutenes and/or titanium vinyl carbene complexes are produced by the reductive titanation of γ-chloroallyl sulfides depending on their substitution patterns.

NOVEL THIOPHENE DERIVATIVES

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Page/Page column 21-22, (2010/11/25)

The invention relates to novel thiophene derivatives, their preparation and their use as pharmaceutically active compounds. Said compounds particularly act as immunosuppressive agents.

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