68931-45-3 Usage
Uses
Used in Organic Synthesis:
2-(5-bromo-pent-3-ynyl-oxy)tetrahydro-2H-pyran is used as a building block for the synthesis of more complex organic molecules. Its unique structure, featuring a bromo and alkyne group, allows for various chemical reactions and modifications, making it a valuable intermediate in the synthesis of pharmaceuticals and other organic compounds.
Used in Medicinal Chemistry:
2-(5-bromo-pent-3-ynyl-oxy)tetrahydro-2H-pyran is used as a starting material for the development of new drugs and pharmaceuticals. Its structural features can be exploited to design and synthesize novel bioactive molecules with potential therapeutic applications. Researchers in the field of medicinal chemistry can utilize 2-(5-broMopent-3-ynyloxy)tetrahydro-2H-pyran to explore its potential in treating various diseases and conditions.
Check Digit Verification of cas no
The CAS Registry Mumber 68931-45-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,3 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68931-45:
(7*6)+(6*8)+(5*9)+(4*3)+(3*1)+(2*4)+(1*5)=163
163 % 10 = 3
So 68931-45-3 is a valid CAS Registry Number.
68931-45-3Relevant articles and documents
Diastereoselective access to 3-nitro-4-vinylidenetetrahydrofurans and 3-nitro-4-vinylidenetetrahydropyrans and their conversion into 3,6-dihydro-1,2-oxazines by reverse cope elimination of hydroxylamine precursors
Dumez, Estelle,Faure, Robert,Dulcere, Jean-Pierre
, p. 2577 - 2588 (2007/10/03)
A new approach to the synthesis of unsaturated nitro-allenyltetrahydrofurans 3 and -tetrahydropyrans 5 has been developed, involving oxa-Michael addition/SN2′ substitution of propargyl and homopropargyl alcohol derivatives 2a and 4h on nitroalkenes1a-g. Complete allylic 1,3-strain control during the cyclization accounts for the observed diastereoselectivity. Reduction of nitro compounds 3 and 5 with SmI2 provided new α-allenylhydroxylamines 7 and 8, which were easily isomerized into 3,6-dihydro-1,2-oxazines 9 and 10 by reverse Cope elimination. Wiley-VCH Verlag GmbH, 2001.
