Cas 138541-87-4,4-((1S,2S)-2-Ethyl-cyclopentyl)-3-oxo-2-(triphenyl-λ<sup>5</sup>-phosphanylidene)-butyric acid ethyl ester

138541-87-4

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Basic information

Product Name: 4-((1S,2S)-2-Ethyl-cyclopentyl)-3-oxo-2-(triphenyl-λ⁵-phosphanylidene)-butyric acid ethyl ester
Synonyms:
CAS NO:138541-87-4
Molecular Formula:
Molecular Weight: 486.591
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 4-((1S,2S)-2-Ethyl-cyclopentyl)-3-oxo-2-(triphenyl-λ⁵-phosphanylidene)-butyric acid ethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 4-((1S,2S)-2-Ethyl-cyclopentyl)-3-oxo-2-(triphenyl-λ⁵-phosphanylidene)-butyric acid ethyl ester(138541-87-4)
EPA Substance Registry System: 4-((1S,2S)-2-Ethyl-cyclopentyl)-3-oxo-2-(triphenyl-λ⁵-phosphanylidene)-butyric acid ethyl ester(138541-87-4)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 138541-87-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 138541-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,4 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138541-87:
(8*1)+(7*3)+(6*8)+(5*5)+(4*4)+(3*1)+(2*8)+(1*7)=144
144 % 10 = 4
So 138541-87-4 is a valid CAS Registry Number.

138541-87-4Upstream product

138541-81-8 ethyl 6-ethyl-9-iodo-3-oxo-2-(triphenylphosphoranylidene)-4(E)-nonenoate

138541-87-4Downstream Products

138541-87-4Relevant academic research and scientific papers

Stereochemistry of Metal-Halogen Exchange-Initiated Intramolecular Conjugate Addition Reactions in the Construction of 5-Membered Carbocycles

Cooke, Manning P.

, p. 1495 - 1503 (1992)

The stereochemistry of some lithium-iodine exchange-initiated cyclization reactions of model ω-iodo, γ-substituted activated olefins has been studied.The stereoselectivities of these anionic cyclization reactions have been found to be a function of the ol

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