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150272-46-1

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150272-46-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 150272-46-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,0,2,7 and 2 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 150272-46:
(8*1)+(7*5)+(6*0)+(5*2)+(4*7)+(3*2)+(2*4)+(1*6)=101
101 % 10 = 1
So 150272-46-1 is a valid CAS Registry Number.

150272-46-1Downstream Products

150272-46-1Relevant articles and documents

An Effective Use of Benzoic Anhydride and Its Derivatives for the Synthesis of Carboxylic Esters and Lactones: A Powerful and Convenient Mixed Anhydride Method Promoted by Basic Catalysts

Shiina, Isamu,Kubota, Mari,Oshiumi, Hiromi,Hashizume, Minako

, p. 1822 - 1830 (2007/10/03)

Various carboxylic esters are obtained at room temperature in excellent yields with high chemoselectivities from nearly equimolar amounts of carboxylic acids and alcohols using 2-methyl-6-nitrobenzoic anhydride with triethylamine by the promotion of a basic catalyst such as 4-(dimethylamino)pyridine. A variety of lactones are also prepared in high yields at room temperature from the corresponding ω-hydroxycarboxylic acids with use of 2-methyl-6-nitrobenzoic anhydride in the presence of 4-(dimethylamino)pyridine. A similar reaction occurs with triethylamine when using a catalytic amount of 4-(dimethylamino)pyridine 1-oxide as an effective promoter for the intramolecular condensation reaction. These methods are successfully applied to the synthesis of erythro-aleuritic acid lactone and an eight-membered-ring lactone moiety of octalactins A and B. The efficiency of the cyclizations is compared to those of other reported lactonizations.

A convenient one-step method for the deprotection and esterification of triphenylmethyl ethers

Bergmeier, Stephen C.,Arason, Kristján M.

, p. 5799 - 5802 (2007/10/03)

We have discovered a simple one-pot procedure to convert trityl ethers into esters, using the corresponding acid chloride as the only reagent. (C) 2000 Elsevier Science Ltd.

An Efficient Method for the Preparation of Carboxylic Esters via Mixed Anhydrides by the Promotion of a Catalytic Amount of Lewis Acid

Mukaiyama, Teruaki,Shiina, Isamu,Miyashita, Mitsutomo

, p. 625 - 628 (2007/10/02)

Various carboxylic esters are prepared in excellent yields by the reaction of nearly equimolar amounts of silyl derivatives of carboxylic acids and alcohols with p-trifluoromethylbenzoic anhydride in the presence of a catalytic amount of Lewis acid.

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