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18521-02-3

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18521-02-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18521-02-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,5,2 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 18521-02:
(7*1)+(6*8)+(5*5)+(4*2)+(3*1)+(2*0)+(1*2)=93
93 % 10 = 3
So 18521-02-3 is a valid CAS Registry Number.

18521-02-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl (Z)-3-cyclohexylprop-2-enoate

1.2 Other means of identification

Product number -
Other names Ethyl (Z)-3-chloropropenoate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:18521-02-3 SDS

18521-02-3Relevant articles and documents

Evidence against Reversible Wittig Reaction of a Stabilized Ylide: High (E)-Olefin Selectivity under Kinetic Control

Vedejs, E.,Fleck, T.,Hara, S.

, p. 4637 - 4639 (1987)

The betaine 10, generated by deprotonation from deuterium-labeled 8-d, decomposes stereospecifically to the (Z)-alkene.The corresponding Wittig reaction of ylide 4 with cyclohexanecarboxaldehyde, which gives a 95:5 (E)-/(Z)-alkene ratio, therefore occurs under kinetic control, without equilibration or Wittig reversal.

Highly syn-selective elimination of peterson anti-adducts to give Z-α,β-unsaturated esters

Murai, Yutaka,Nakagawa, Akira,Kojima, Satoshi

supporting information, p. 228 - 231 (2017/02/10)

Peterson adducts have been known to stereospecifically give syn-elimination products upon treatment with base except when the product olefin is in conjugation with an electron-withdrawing group. The missing piece has been put in place by using a catalytic amount of DBU, by which syn-elimination could be effected to provide the thermally less stable Z-olefin from the anti-adduct with high selectivity.

Stereoselective synthesis of either (E)- or (Z)-silyl enol ether from the same acyclic α,β-unsaturated ketone using cationic rhodium complex-catalyzed 1,4-hydrosilylation

Onodera, Gen,Hachisuka, Ryosuke,Noguchi, Tomomi,Miura, Hiroki,Hashimoto, Toru,Takeuchi, Ryo

supporting information, p. 310 - 313 (2014/01/06)

The stereoselective synthesis of either (E)- or (Z)-silyl enol ether from the same acyclic α,β-unsaturated ketone is reported. Highly (Z)-selective conditions were the use of [Rh(cod)2]BF 4/DPPE at room temperature with no solvent, whereas (E)-selective conditions were the use of [Rh(cod)2]BF4/P(1-Nap) 3 (1-Nap = 1-naphthyl) under refluxing dichloromethane.

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