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(2R,3R)-2-methyl-4-phenylbutane-1,3-diyl diacetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

185628-40-4

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185628-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185628-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,6,2 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 185628-40:
(8*1)+(7*8)+(6*5)+(5*6)+(4*2)+(3*8)+(2*4)+(1*0)=164
164 % 10 = 4
So 185628-40-4 is a valid CAS Registry Number.

185628-40-4Relevant academic research and scientific papers

Diastereo-face selectivity in the aldol reaction of boryl enolate derived from Oppolzer's sultam

Iseki, Katsuhiko,Oishi, Satoshi,Kobayashi, Yoshiro

, p. 2003 - 2008 (2007/10/03)

In the Oppolzer aldol reaction, aldehyde reacts exclusively on the Si face (C(α)-Si attack) of the double bond of the boryl enolate 2 derived from (1S,2R)-N-propionylbornane-10,2-sultam (1), providing only 3a stereoselectively. Hexafluoroacetone (4) cause

Reversal of stereoselectivity in the Evans aldol reaction of α,α-difluoro and α,α,α-trifluoro carbonyl compounds

Iseki, Katsuhiko,Oishi, Satoshi,Kobayashi, Yoshiro

, p. 71 - 84 (2007/10/02)

The Evans aldol reaction of hexafluoroacetone and trifluoroacetaldehyde causes complete reversal of diastereofacial selectivity. The boron enolate derived from N-acyloxazolidinone 2 reacts with trifluoroacetaldehyde to give anti and "non-Evans" syn aldols

Reversal of Stereoselectivity in the Aldol Reaction of Boron Enolate Derived from Oppolzer's Sultam with α,α-Difluoro and α,α,α-Trifluoro Carbonyl Compounds

Iseki, Katsuhiko,Oishi, Satoshi,Kobayashi, Yoshiro

, p. 1135 - 1138 (2007/10/02)

Hexafluoroacetone causes the complete reversal of stereochemistry in the aldol reaction of boron enolate derived from Oppolzer's sultam in the absence of Lewis acids such as TiCl4.Trifluoroacetaldehyde and 2,2-difluoro-5-phenyl-1-pentanal cause partial re

Reversal of stereoselectivity in the Evans aldol reaction of α,α-difluoro and α,α,α-trifluoro carbonyl compounds

Iseki, Katsuhiko,Oishi, Satoshi,Taguchi, Takeo,Kobayashi, Yoshiro

, p. 8147 - 8150 (2007/10/02)

The Evans aldol reaction of hexafluoroacetone and trifluoroacetaldehyde causes reversal of stereoselectivity. The boron enolate derived from oxazolidinone 1 reacts with trifluoroacetaldehyde to give anti and "non-Evans" syn aldols with stereoselectivities

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