Cas 354581-77-4,(S)-(-)-tert-butyl (S)-3-phenyl-5-oxohexanethioate

354581-77-4

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Basic information

Product Name: (S)-(-)-tert-butyl (S)-3-phenyl-5-oxohexanethioate
Synonyms: (S)-(-)-tert-butyl (S)-3-phenyl-5-oxohexanethioate
CAS NO:354581-77-4
Molecular Formula:
Molecular Weight: 278.415
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: (S)-(-)-tert-butyl (S)-3-phenyl-5-oxohexanethioate(CAS DataBase Reference)
NIST Chemistry Reference: (S)-(-)-tert-butyl (S)-3-phenyl-5-oxohexanethioate(354581-77-4)
EPA Substance Registry System: (S)-(-)-tert-butyl (S)-3-phenyl-5-oxohexanethioate(354581-77-4)

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: 354581-77-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 354581-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,4,5,8 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 354581-77:
(8*3)+(7*5)+(6*4)+(5*5)+(4*8)+(3*1)+(2*7)+(1*7)=164
164 % 10 = 4
So 354581-77-4 is a valid CAS Registry Number.

354581-77-4Upstream product

354581-77-4Downstream Products

108056-65-1 methyl (S)-(-)-5-oxo-3-phenylhexanoate

354581-77-4Relevant academic research and scientific papers

Dimethylsilyl ketene acetal as a nucleophile in asymmetric Michael reaction: Enhanced enantioselectivity in oxazaborolidinone-catalyzed reaction

Harada, Toshiro,Adachi, Shinya,Wang, Xiaowei

, p. 4877 - 4879 (2004)

(Chemical Equation Presented) Dimethylsilanyl [Me2Si(H)] ketene S,O-acetal 6b is an effective nucleophile that retards the undesirable Si +-catalyzed racemic pathway in the oxazaborolidinone-catalyzed asymmetric Michael reaction. Thr

Enantioselective Lewis Acid-Catalyzed Mukaiyama-Michael Reactions of Acyclic Enones. Catalysis by allo-Threonine-Derived Oxazaborolidinones

Wang, Xiaowei,Adachi, Shinya,Iwai, Hiroyoshi,Takatsuki, Hiroshi,Fujita, Katsuhiro,Kubo, Mikako,Oku, Akira,Harada, Toshiro

, p. 10046 - 10057 (2007/10/03)

allo-Threonine-derived O-aroyl-B-phenyl-N-tosyl-1,3,2 -oxazaborolidin-5-ones 1g,n catalyze the asymmetric Mukaiyama-Michael reaction of acyclic enones with a trimethylsilyl ketene S,O-acetal in high enantioselectivity. A range of alkenyl methyl ketones is successfully employed as Michael acceptors affording ee values of 85-90% by using 10 mol % of the catalyst. The use of 2,6-diisopropylphenol and tert-butyl methyl ether as additives is found to be essential to achieve high enantioselectivity in these reactions. The effects of the additives are discussed in terms of the retardation of an Si+-catalyzed racemic pathway, which seriously deteriorates the enantioselectivity of asymmetric Mukaiyama-Michael reactions. A working model for asymmetric induction is proposed based on correlation between catalyst structures and enantioselectivities.

Asymmetric Mukaiyama-Michael Addition of Acyclic Enones Catalyzed by allo-Threonine-Derived B-Aryloxazaborolidinones

Harada, Toshiro,Iwai, Hiroyoshi,Takatsuki, Hiroshi,Fujita, Katsuhiro,Kubo, Mikako,Oku, Akira

, p. 2101 - 2103 (2007/10/03)

(Formula Presented) O-(2-Naphthoyl)-N-tosyl-L-allo-threonine-derived B-phenyloxazaborolidinone catalyzes the asymmetric Mukaiyama-Michael addition of simple acyclic enones to give adducts of 54-85% ee. 2,6-Diisopropylphenol as an additive is demonstrated

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