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91525-60-9

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91525-60-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91525-60-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,2 and 5 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91525-60:
(7*9)+(6*1)+(5*5)+(4*2)+(3*5)+(2*6)+(1*0)=129
129 % 10 = 9
So 91525-60-9 is a valid CAS Registry Number.

91525-60-9Downstream Products

91525-60-9Relevant articles and documents

BORON TRIFLUORIDE PROMOTED REACTION OF BENZENESULPHENANILIDES WITH ALKENES

Benati, Luisa,Montevecchi, P. Carlo,Spagnolo, Piero

, p. 1145 - 1156 (2007/10/02)

The boron trifluoride-promoted reaction of a series of 3'- and 4'-substituted benzenesulphenanilides (1) with various alkenes has been investigated as a potential synthetic route to arylaminosulphides.The benzenesulphenanilides (1) investigated generally afford arylaminosulphenylation adducts in fair to good yields except for the methoxy-substituted anilides (1e and f), which largely lead to decomposition products under comparable conditions.In all cases examined, the addition proceeds with trans-stereospecificity and, with terminal alkenes, leads regioselectively to the exclusive (or predominant) formation of the terminal sulphides.The findings are interpreted by assuming that boron trifluoride transforms the sluggish benzenesulphenanilides (1) into reactive electrophilic species, which can undergo nucleophilic attack at sulphur by an alkene, presumably affording episulphonium-borate ion-pair intermediates, in competition with attack by another sulphenanilide unit.

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