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93684-44-7

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93684-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93684-44-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,6,8 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93684-44:
(7*9)+(6*3)+(5*6)+(4*8)+(3*4)+(2*4)+(1*4)=167
167 % 10 = 7
So 93684-44-7 is a valid CAS Registry Number.

93684-44-7Relevant articles and documents

CONDENSATION REACTION BY METAL CATALYST

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Page/Page column 24; 28, (2008/12/07)

The invention relates to a method for producing an azoline compound represented by the general formula (3): wherein R1 represents an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted alkoxycarbonyl group, a halogen atom, a substituted amino group, a substituted carbamoyl group or an optionally substituted heterocyclic group; R3, R4, R5 and R6 may be the same or different and each represents a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted alkoxycarbonyl group, a halogen atom, a substituted amino group, a substituted carbamoyl group or an optionally substituted heterocyclic group; two arbitrary groups selected from R3, R4, R5 and R6 may bond to each other to form a ring; and Z1 represents an oxygen atom, a sulfur atom or a selenium atom; comprising reacting a carboxylic acid or a carboxylic acid derivative represented by the general formula (1): ????????R1CO2R2?????(1) wherein R1 is as defined above; R2 represents a hydrogen atom, an optionally substituted alkyl group or an optionally substituted aryl group; and R1 and R2 may bond to each other to form a ring; with an aminochalcogenide represented by the general formula (2): wherein R3, R4, R5, R6 and Z1 are as defined above; in the presence of a compound containing a group 12 metal element in the periodic table.

Direct conversion of esters, lactones, and carboxylic acids to oxazolines catalyzed by a tetranuclear zinc cluster

Ohshima, Takashi,Iwasaki, Takanori,Mashima, Kazushi

, p. 2711 - 2713 (2008/09/21)

The tetranuclear zinc cluster Zn4(OCOCF3) 6O catalyzes the direct conversion of esters, lactones, and carboxylic acids to oxazolines with remarkable chemoselectivity. The Royal Society of Chemistry 2006.

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