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148943-71-9

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148943-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148943-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,9,4 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 148943-71:
(8*1)+(7*4)+(6*8)+(5*9)+(4*4)+(3*3)+(2*7)+(1*1)=169
169 % 10 = 9
So 148943-71-9 is a valid CAS Registry Number.

148943-71-9Relevant articles and documents

Synthesis of N?H Bearing Imidazolidinones and Dihydroimidazolones Using Aza-Heck Cyclizations

Xu, Feiyang,Shuler, Scott A.,Watson, Donald A.

supporting information, p. 12081 - 12085 (2018/09/11)

The synthesis of unsaturated, unprotected imidazolidinones via an aza-Heck reaction is described. This palladium-catalyzed process allows for the cyclization of N-phenoxy ureas onto pendant alkenes. The reaction has broad functional group tolerance, can b

N,N,N',N'-Tetramethylazodicarboxamide (TMAD), A New Versatile Reagent for Mitsunobu Reaction. Its Application to Synthesis of Secondary Amines

Tsunoda, Tetsuto,Otsuka, Junko,Yamamiya, Yoshiko,Ito, Sho

, p. 539 - 542 (2007/10/02)

N,N,N',N'-Tetramethylazodicarboxamide, (TMAD), was found to be more versatile in the Mitsunobu reaction than traditional diethyl azodicarboxylate or recently developed 1,1'-(azodicarbonyl)dipiperidine, when used in combination with tributylphosphine in benzene.The usefulness of the reagent was demonstrated by the highly efficient two-step synthesis of benzylcrotylamine from N-benzyltrifluoroacetamide.

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