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Cyclohexanone, 4-(1-methylethylidene)-, also known as 4-isopropylidenecyclohexanone, is a cyclic ketone derivative featuring an isopropylidene group at the 4-position of the cyclohexanone ring. This structure imparts unique reactivity and steric properties, making it a potential intermediate in organic synthesis, particularly for the construction of more complex cyclic or terpenoid systems. Its conjugated carbonyl group and substituted cyclohexane framework may influence its physicochemical behavior, such as solubility and stability, in chemical reactions. Further details would depend on specific experimental or theoretical studies.

19620-36-1

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19620-36-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19620-36-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,2 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 19620-36:
(7*1)+(6*9)+(5*6)+(4*2)+(3*0)+(2*3)+(1*6)=111
111 % 10 = 1
So 19620-36-1 is a valid CAS Registry Number.

19620-36-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-propan-2-ylidenecyclohexan-1-one

1.2 Other means of identification

Product number -
Other names 4-Isopropyliden-cyclohexanon

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:19620-36-1 SDS

19620-36-1Relevant academic research and scientific papers

Domino Aryne Annulation via a Nucleophilic-Ene Process

Xu, Hai,He, Jia,Shi, Jiarong,Tan, Liang,Qiu, Dachuan,Luo, Xiaohua,Li, Yang

supporting information, p. 3555 - 3559 (2018/03/21)

1,2-Benzdiyne equivalents possess the unique property that they can react with two arynophiles through iteratively generated 1,2- and 2,3-aryne intermediates. Upon rational modification on the second leaving group of these aryne precursors, a domino aryne annulation approach was developed through a nucleophilic-ene reaction sequence. Various benzo-fused N-heterocyclic frameworks were achievable under transition metal-free conditions with a broad substrate scope.

A Versatile Route to Unstable Diazo Compounds via Oxadiazolines and their Use in Aryl–Alkyl Cross-Coupling Reactions

Greb, Andreas,Poh, Jian-Siang,Greed, Stephanie,Battilocchio, Claudio,Pasau, Patrick,Blakemore, David C.,Ley, Steven V.

supporting information, p. 16602 - 16605 (2017/12/13)

Coupling of readily available boronic acids and diazo compounds has emerged recently as a powerful metal-free carbon–carbon bond forming method. However, the difficulty in forming the unstable diazo compound partner in a mild fashion has hitherto limited their general use and the scope of the transformation. Here, we report the application of oxadiazolines as precursors for the generation of an unstable family of diazo compounds using flow UV photolysis and their first use in divergent protodeboronative and oxidative C(sp2)?C(sp3) cross-coupling processes, with excellent functional-group tolerance.

METHODS AND DEVICES FOR USING ISOPERILLYL ALCOHOL

-

Page/Page column 36, (2012/06/30)

The present invention provides for a method of treating a disease such as cancer, comprising the step of administering to a patient a therapeutically effective amount of an isomer or analog of monoterpene or sesquiterpene (or its derivative), such as an i

Spiro compounds or salts thereof and preventives/remedies for autoimmune diseases and AP-1 inhibitors containing the same

-

, (2008/06/13)

The spiro compounds of the present invention represented by the general formula: wherein A, R2, R3, R4, R5, R6and n are as defined in the specification, exhibit an AP-1 activity inhibitory action and, based on the AP-1 inhibitory action, suppresses the expression of a wide variety of genes and are useful as an agent for treating and preventing autoimmune diseases with lessoned side reactions.

Enantioselective synthesis of (+)-α-vetivone through the Michael reaction of chiral imines

Revial, Gilbert,Jabin, Ivan,Pfau, Michel

, p. 4975 - 4983 (2007/10/03)

(+)-α-Vetivone has been synthesised in nine steps. The absolute stereochemistry of the two stereogenic centres is controlled in the same key step involving the stereoselective Michael addition of a chiral imine of 4-isopropylidene-2-methylcyclohexanone to phenyl crotonate.

Halogenated Terpenoids. XXIX the 1-Bromo 1-Bromomethyl Cyclohexyl System

Brecknell, Douglas J.,Carman, Raymond M.,Edwards, Ross A.,Hansford, Karl A.,Karoli, Tomislav,Robinson, Ward T.

, p. 689 - 700 (2007/10/03)

Bromination of methylene groups exocyclic to cyclohexyl systems normally affords two isomeric products; the axial 1-bromo equatorial 1-bromomethyl compound and the axial 1-bromomethyl equatorial 1-bromo derivative. Free energy differences between these two isomers, and the conformations adopted by the axial 1-bromomethyl group, have been explored by n.m.r. spectroscopy, by X-ray crystallography and by MM3 calculations. Evidence is presented to show that the ax-bromomethyl group exists primarily as those rotamers which site the bromine atom synclinal to the vicinal bromine. The A value for a bromomethyl group in this system is then similar to that of an unsubstituted methyl group.

The Interaction of π orbitals with a carbocation over three σ bonds

Lambert, Joseph B.,Ciro, Sol M.

, p. 1940 - 1945 (2007/10/03)

The semi-π analogue of double hyperconjugation ("hyperconjugation/conjugation") has been examined in 4-isopropylidenecyclohexyl mesylate (4-OMs) by comparison with the saturated analogue, trans-4-isopropylcyclohexyl mesylate (5-OMs). The unsaturated substrate reacts in 97% trifluoroethanol only four times faster than the saturated substrate. Raber-Harris plots indicate that both substrates react by ks mechanisms; i.e., solvolysis occurs with solvent assistance rather than carbocation formation. These results are consistent with the absence of a direct, through-bond interaction of the double bond with the reactive center. The absence is caused at least in part by less than ideal overlap of the γ,δ π orbitals with the α,β σ orbitals. In contrast, an electron-rich tin atom attached to the 4-position provides a large rate enhancement and changes the mechanism to carbocation formation through double hyperconjugation.

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