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(Z)-2-chloromethylene-5-ethoxy-2,5-dihydrofuran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

136638-77-2

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136638-77-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136638-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,3 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 136638-77:
(8*1)+(7*3)+(6*6)+(5*6)+(4*3)+(3*8)+(2*7)+(1*7)=152
152 % 10 = 2
So 136638-77-2 is a valid CAS Registry Number.

136638-77-2Downstream Products

136638-77-2Relevant academic research and scientific papers

PHASE-TRANSFER CATALYZED ALKOXYLATION OF 2-(DICHLOROMETHYL)FURAN BY ALCOHOLS IN THE PRESENCE OF POTASSIUM HYDROXIDE

Shavrin, K. N.,Volotova, I. V.,Kutin, A. A.

, p. 1244 - 1248 (1991)

Reaction of 2-(dichloromethyl)furan (I) with KOH in a CH2Cl2 medium and in the presence of alcohols (methanol, ethanol, and n-butanol) and a catalytic amount of triethylbenzylammonium chloride (TEBAC) results in the formation of 2-chloromethylene-5-alkoxy-2,5-dihydrofurans (II) (mixtures of Z- and E-isomers) and 2-dialkoxymethylfurans (III), in overall yields of up to 96percent.Reaction with isopropyl and tert-butyl alcohols gave only corresponding products (II), in 21 and 12percent yield, respectively.

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