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109139-28-8

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109139-28-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109139-28-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,3 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109139-28:
(8*1)+(7*0)+(6*9)+(5*1)+(4*3)+(3*9)+(2*2)+(1*8)=118
118 % 10 = 8
So 109139-28-8 is a valid CAS Registry Number.

109139-28-8Relevant articles and documents

The unusual reactivity of the mono- and bis- N-(trifluoromethylsulfonyl)-substituted azaanalogs of arenesulfonochlorides

Garlyauskajte, Romute Yu.,Sereda, Sergej V.,Yagupolskii, Lev M.

, p. 6891 - 6906 (2007/10/02)

The reactions of N-(trifluoromethylsulfonyl)arenesulfonimidoyl- and N,N′-bis (trifluoromethylsulfonyl)arenesulfonodiimidoyl chlorides of general formulas Ar - S(O) (=NSO2CF3)Cl (1) and Ar - S(=NSO2CF3)2Cl (2) with ammonia have been investigated and found to yield the ammonium salts of [N-(trifluoromethylsulfonyl)arenesulfinyliminol-N′- (trifluoromethylsulfonyl)amides. The high oxidative ability of the chlorides (1,2) have been shown. Thus, chlorides (2) react with benzene or trifluoromethylbenzene, to form the chlorobenzene or 3-chloro-trifluoromethylbenzene. The fluorides of the general formulas Ar - S(O) (=NSO2CF3)F and Ar - S(=NSO2CF3)2F have been prepared. Their interaction with ammonia leads to the usual formation of corresponding amides. The electron nature of new electron withdrawing substituents have been investigated.

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