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115252-91-0

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115252-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115252-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,2,5 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 115252-91:
(8*1)+(7*1)+(6*5)+(5*2)+(4*5)+(3*2)+(2*9)+(1*1)=100
100 % 10 = 0
So 115252-91-0 is a valid CAS Registry Number.

115252-91-0Downstream Products

115252-91-0Relevant articles and documents

Synergistic Combinations Of Active Ingredients

-

, (2012/02/15)

The present invention relates to novel active compound combinations comprising, firstly, at least one known compound of the formula (I) in which R1 and A have the meanings given in the description and, secondly, at least one further known active compound from groups (2) to (27) listed in the description, which combinations are highly suitable for controlling animal pests such as insects and unwanted acarids and also phytopathogenic fungi.

Practical, general, and systematic method for optical resolution of gem-dihalo- and monohalocyclopropanecarboxylic acids utilizing chiral 1,1′-binaphtholmonomethyl ethers: Application to the synthesis of three chiral pesticides

Yasukochi, Hiroaki,Atago, Takayuki,Tanaka, Akihiro,Nakatsuji, Hidefumi,Yoshida, Eri,Kakehi, Akikazu,Nishii, Yoshinori,Tanabe, Yoo

experimental part, p. 540 - 547 (2008/10/09)

We performed an efficient practical and systematic optical resolution method for gem-dihalo- and monohalocyclopropanecarboxylic acids 1 and 5 utilizing chiral 1,1′-binaphthol monomethyl ether (R)-2 as the key auxiliary. Direct esterification of 1 with (R)-2 gave two 1R- and 1S-diastereomeric esters 3 with marked different Rf values, both of which were easily separated using simple column chromatography. Monodehalogenation of separated chiral esters 3 using t-BuMgCl and cat. Co(dppe)2Cl2 gave two 1,2-trans- and 1,2-cis-diastereomers 4 with markedly different Rf values, both of which were similarly separated using simple column chromatography. The obtained diastereomers 3 and 4 were easily hydrolyzed to the desired enantiopure acids 1 (>99%) and 5 (>99%), respectively, with recovery of (R)-2, both in good to excellent yields. Utilizing the present method, important chiral agrochemicals, carpropamid 6 and fencyclate 7, were readily synthesized. Pyrethroid 9 with three asymmetric centers was efficiently synthesized in a much better yield compared with the reported method. The Royal Society of Chemistry 2008.

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