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139583-37-2

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139583-37-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139583-37-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,8 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139583-37:
(8*1)+(7*3)+(6*9)+(5*5)+(4*8)+(3*3)+(2*3)+(1*7)=162
162 % 10 = 2
So 139583-37-2 is a valid CAS Registry Number.

139583-37-2Downstream Products

139583-37-2Relevant articles and documents

Reactions between iron(0) alkynylcarbene complexes and cyclopentadiene: Formation of iron(0) η1-vinylcarbene complexes and their facile thermal transformation into the corresponding (η3:η1-allylacyl)iron(II) complexes

Park, Jaiwook,Kang, Sunhwa,Whang, Dongmok,Kim, Kimoon

, p. 1738 - 1741 (2008/10/08)

[(3-tert-Butylnorbornadienyl)ethoxymethylene]Fe(CO)4, the iron(0) η1-vinylcarbene complex 2, is obtained from the reaction of [(3,3-dimethylbutynyl)ethoxymethylene]Fe(CO)4 (1a) with cyclopentadiene at 25°C. Complex 2 transforms into the η3:η1-allylacyl complex 4a via a CO insertion reaction at the original carbene carbon by heating at 50°C for 1 h. However, direct formation of η3:η1-allylacyl complexes is observed in reactions of cyclopentadiene with other alkynylcarbene complexes, 1b (R = SiMe3), 1c (R = cyclohexyl), 1d (R = n-propyl), and 1e (R = phenyl), at 25°C.

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