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78905-13-2

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78905-13-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78905-13-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,0 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78905-13:
(7*7)+(6*8)+(5*9)+(4*0)+(3*5)+(2*1)+(1*3)=162
162 % 10 = 2
So 78905-13-2 is a valid CAS Registry Number.

78905-13-2Relevant articles and documents

Stereoselective preparation of (E)- and (Z)-di- and trisubstituted 1,3-butadienes

Takeda, Takeshi,Tateishi, Keiichiro,Tsubouchi, Akira

, p. 4016 - 4021 (2015)

Abstract The reaction of γ-(trimethylsilyl)allyltitanocenes, generated by the desulfurizative titanation of trimethylsilyl-substituted allylic sulfides with the titanocene(II)-1-butene complex, with ketones produced β-hydroxy silanes with good to complete

Synthesis of Vinylcyclopropanes from Epoxides

Schaumann, Ernst,Kirschning, Andreas,Narjes, Frank

, p. 717 - 723 (2007/10/02)

Ring-opening of epoxides 1 by heteroatom-substituted allyl anions 2 occurs with high regioselectivity.In situ tosylation of the resulting alkoxides 3 or tosylation of the corresponding alcohols 4 yields 4-pentenyl tosylates 5.Anion generation by deprotona

Acid-Catalyzed Regioselective Acylation of α-Silylallylic Sulfides and Its Application to a Novel Cyclopentannelation and Furan Annelation

Hiroi, Kunio,Sato, Hiroyasu,Chen, Lih-Ming,Kotsuji, Kumiko

, p. 1413 - 1426 (2007/10/02)

Introduction of a silyl group at the α-position of allylic sulfides, followed by the aluminum chloride-catalyzed reaction of the resulting α-silylallylic sulfides with acid chlorides resulted in regioselective acylation at the γ-position of the allylic system to give γ-acylated vinylic sulfides, chemically equivalent to 1,4-dicarbonyl compounds.Heating of the products in refluxing benzene with an equimolar amount of p-toluenesulfonic acid produced 2-cyclopentanone derivatives.Treatment of the acylated products with an equimolar amount of concentrated sulfuric acid gave α-phenylthiofuran derivatives.These procedures provide a novel method for cyclopentannelation and furan annelation.Keywords - α-silylallylic sulfide; acid chloride; aluminum chloride; acid-catalyzed acylation; vinylic sulfide; 2-cyclopentanone; α-phenylthiofuran; furan; cyclopentannelation; furan annelation

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