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186774-34-5

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186774-34-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186774-34-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,7,7 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 186774-34:
(8*1)+(7*8)+(6*6)+(5*7)+(4*7)+(3*4)+(2*3)+(1*4)=185
185 % 10 = 5
So 186774-34-5 is a valid CAS Registry Number.

186774-34-5Downstream Products

186774-34-5Relevant articles and documents

Synthesis, structure and hydrolysis of some [(η5-cyclopentadienyl) (η6-arene) iron(II)][PF6] complexes bearing an imine or a nitrone function in α-position of the arene ligand

Pierre, Fabrice,Moinet, Claude,Toupet, Loic

, p. 51 - 64 (2007/10/03)

Condensation between [(η5-Cp)(η6-fluorene)Fe]+] I and various nitrosoarenes R-Ph-NO (R = H, 2-Me, 3-Me, 4-Me, 3-COMe, 4-COMe and 4-NMe2) were initiated with 5% t-BuOK and led to [(η5-Cp)(η6-fluorenone-anil)Fe]+ complexes Ia-g (57-88%) as syn-anti mixtures (ca. 30:70 respectively). [(η5-Cp)(η6-diphenylmethane)Fe]+ II with nitrosobenzene or nitrosotoluenes gave mixtures of [(η5-Cp)(η6-benzophenone-N-phenylnitrone)Fe]+ IIa-d and [(η5-Cp)(η6-benzophenone-anil)Fe]+ IIa-d complexes (ca. 80:20) with good yields (80-92%). Nitrone complexes IIa,c,d were isolated as pure Z-isomer by fractional recrystallisation (22-35%). 2D-1H, 13C NMR correlation and X-ray analysis were used to identify the new compounds. Owing to the high nitrosobenzene oxidative character, condensation with other [(η5-Cp)(η6-arene)Fe]+ complexes (arene = toluene, ethylbenzene, indane and tetraline) failed. Acidic hydrolysis of these imine and nitrone complexes has been investigated kinetically using polarography. Macroscale hydrolysis yielded [(η5-Cp)(η6-fluorenone)Fe]+ Ii (82%) and [(η5-Cp)(η6-benzophenone)Fe]+ IIi (91%).

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