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(Z)-5-benzyldimethylsilyl-3-phenyl-4-penten-1-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

320399-75-5

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320399-75-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 320399-75-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,0,3,9 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 320399-75:
(8*3)+(7*2)+(6*0)+(5*3)+(4*9)+(3*9)+(2*7)+(1*5)=135
135 % 10 = 5
So 320399-75-5 is a valid CAS Registry Number.

320399-75-5Relevant articles and documents

Acid-catalyzed cyclization of vinylsilanes bearing a hydroxy group: A new method for stereoselective synthesis of disubstituted tetrahydrofurans

Miura,Okajima,Hondo,Nakagawa,Takahashi,Hosomi

, p. 11348 - 11357 (2007/10/03)

In the presence of a catalytic amount of TsOH or TiCl4, (Z)-5-silyl-4-penten-1-ols ((Z)-1) are smoothly cyclized to 2-silylmethyl-substituted tetrahydrofurans. This cyclization is applicable to the construction of a tetrahydropyran ring. The silyl group and the geometry of the C-C double bond strongly influence the cychzation rate. TBDMS and benzyldimethylsilyl groups considerably accelerate the cyclization in comparison with a dimethylphenylsilyl group, and (E)-vinylsilanes show much lower reactivity than the corresponding (Z)-isomers. The cyclization proceeds by stereospecific syn addition of the hydroxy group. Vinylsilanes 17, 19, and 21, (Z)-5-silyl-4-penten-1-ols bearing a substituent on the methylene tether, smoothly undergo the acid-catalyzed cyclization to give trans-2,5-, cis-2,4-, and trans-2,3-disubstituted tetrahydrofurans, respectively, with moderate to high stereoselectivity. The silyl group of some cychzed products can be easily converted into a hydroxy group with stereochemical retention.

Acid-catalyzed cyclization of vinylsilanes bearing an amino group. Stereoselective synthesis of pyrrolidines

Miura, Katsukiyo,Hondo, Takeshi,Nakagawa, Takahiro,Takahashi, Tatsuyuki,Hosomi, Akira

, p. 385 - 388 (2007/10/03)

(FORMULA PRESENTED) In the presence of an acid catalyst, vinylsilanes 1 bearing an amino group protected by an electron-withdrawing group were smoothly cyclized to 2-(silylmethyl)pyrrolidines 2. This cyclization was utilized for the stereoselective synthe

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