198402-59-4 Usage
Description
(S)-4,5-ISOPROPYLIDENE-2-PENTENYLBROMIDE, an organobromide compound, is a colorless or pale yellow liquid with the molecular formula C9H15Br. It is known for its role in organic synthesis and as a key component in the production of pharmaceuticals, agrochemicals, and fine chemicals.
Uses
Used in Organic Synthesis:
(S)-4,5-ISOPROPYLIDENE-2-PENTENYLBROMIDE is used as a reagent for [facilitating various chemical reactions and syntheses] due to [its unique chemical structure and reactivity].
Used in Pharmaceutical Production:
(S)-4,5-ISOPROPYLIDENE-2-PENTENYLBROMIDE is used as a building block for [creating various pharmaceuticals] because of [its ability to form essential intermediates and contribute to the development of new drugs].
Used in Agrochemical Production:
(S)-4,5-ISOPROPYLIDENE-2-PENTENYLBROMIDE is used as a component in [agrochemical synthesis] for [developing new pesticides and other agricultural chemicals], leveraging [its chemical properties to enhance the effectiveness and diversity of agrochemical products].
Used in Fine Chemicals Manufacturing:
(S)-4,5-ISOPROPYLIDENE-2-PENTENYLBROMIDE is used as a key intermediate in [fine chemicals production] to [create high-quality specialty chemicals with specific applications].
Used in Research and Development:
(S)-4,5-ISOPROPYLIDENE-2-PENTENYLBROMIDE is utilized in [R&D of new chemical processes and materials] as [a versatile compound that can lead to innovative discoveries and advancements in the chemical industry].
Check Digit Verification of cas no
The CAS Registry Mumber 198402-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,4,0 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 198402-59:
(8*1)+(7*9)+(6*8)+(5*4)+(4*0)+(3*2)+(2*5)+(1*9)=164
164 % 10 = 4
So 198402-59-4 is a valid CAS Registry Number.
InChI:InChI=1/C12H11FN2O2/c1-2-17-12(16)10-7-14-15-11(10)8-3-5-9(13)6-4-8/h3-7H,2H2,1H3,(H,14,15)
198402-59-4Relevant articles and documents
Reversal of facial selectivity in a thia-Claisen rearrangement by incorporation of a vinylic bromine substituent
Ellwood, Adam R.,Mortimer, Anne J. Price,Goodman, Jonathan M.,Porter, Michael J.
, p. 7530 - 7539 (2013/11/06)
Thia-Claisen rearrangements have been carried out using N-benzylpyrrolidine-2-thione and chiral allylic bromides derived from d-mannitol. Introduction of a bromine atom onto the double bond of the allylic bromide reverses the sense of diastereoselectivity in the [3,3]-sigmatropic rearrangement. Density functional theory calculations lead us to rationalise the observed selectivity in terms of a Cieplak effect.
1,2-Asymmetric Induction in the Zwitterionic Claisen Rearrangement of Allylamines
Nubbemeyer, Udo
, p. 3773 - 3780 (2007/10/02)
A zwitterionic Claisen rearrangement has been developed for optically active N-allylpyrrolidines using a two-phase system.The inherent-1,2 asymmetric induction was investigated for the generation of a new C-C bond adjacent to a chiral C-O function.The reaction with acetyl chloride led to a small diastereomeric excess, whereas the rearrangement with propionyl chloride proceeded with a high simple and a high induced diastereoselection.The resulting γ,δ-unsaturated amides were cyclized to the corresponding optically active γ-butyrolactones, which are useful intermediates in natural product synthesis.
