49606-44-2 Usage
Synthesis Reference(s)
Tetrahedron, 26, p. 3527, 1970 DOI: 10.1016/S0040-4020(01)92932-1
Check Digit Verification of cas no
The CAS Registry Mumber 49606-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,6,0 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 49606-44:
(7*4)+(6*9)+(5*6)+(4*0)+(3*6)+(2*4)+(1*4)=142
142 % 10 = 2
So 49606-44-2 is a valid CAS Registry Number.
InChI:InChI=1/C17H11ClF4N2O/c18-10-5-6-14-12(7-10)16(11-3-1-2-4-13(11)19)23-8-15(25)24(14)9-17(20,21)22/h1-7H,8-9H2
49606-44-2Relevant academic research and scientific papers
Process for the preparation of 1,4-benzo-diazepines and 1,4-benzodiazepinones
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, (2008/06/13)
This invention relates to an improved process for the preparation of 1,3-dihydro-2H-1,4-benzodiazepin-2-ones and 2,3-dihydro-1H-1,4-benzodiazepines by the condensation of a 2-(2-haloacylamido)-benzophenone or a 2-(2-haloethylamino)-benzophenone, respectively, in the presence of hexamethylenetetramine, a water miscible alcohol containing 5 to 50 volume percent water, and an ammonium salt.