Welcome to LookChem.com Sign In|Join Free

CAS

  • or

2305-21-7

Post Buying Request

2305-21-7 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

2305-21-7 Usage

Description

2-Hexen-l-ol has a powerful, fruity, green, wine-like, leafy odor and a sweet, fruity flavor important to strawberry and orange juice. The ds-form can be prepared by hydrogenation of ds-2-hexenol, using an aqueous suspension of colloidal palladium; from cis- 4-chloro-2-butenol and magnesium ethyl bromide; the commercial product is a mixture of the cis- and trans-isomers and can be prepared from propyl vinyl carbinol by heating with aluminum oxide.

Chemical Properties

2-Hexen-1-ol has a powerful, fruity-green odor, with a sweet, fruity flavor important to strawberry and orange juice

Occurrence

Reported found as a constituent of fresh raspberry aroma; also identified in Valencia orange juice and apple aroma, probably occurring as an ester. Also reported found in raw and cooked asparagus, cooked potato, cooked beef, hop oil, brandy, beer, white wine, roasted peanut, soybean, olive, prune, prickly pear, malt, kiwifruit, loquat, quince, apple, peach, strawberry, tamarind, tomato and tea

Preparation

The cis-form can be prepared by hydrogenation of cis-2-hexenol, using an aqueous suspension of colloidal palladium; from cis-4-chloro-2-butenol and magnesium ethyl bromide; the commercial product is a mixture of the cis- and trans-isomers and can be prepared from propyl vinyl carbinol by heating with aluminum oxide.

Aroma threshold values

Aroma characteristics at 1.0%: fresh, fatty green, tomato vegetative, with leafy, green fruity and herbal nuances.

Taste threshold values

Taste characteristics at 5 ppm: fresh, leafy green, slightly fatty with grassy, fruity and juicy nuances, tomato and celery nuances.

Check Digit Verification of cas no

The CAS Registry Mumber 2305-21-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,0 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2305-21:
(6*2)+(5*3)+(4*0)+(3*5)+(2*2)+(1*1)=47
47 % 10 = 7
So 2305-21-7 is a valid CAS Registry Number.
InChI:InChI=1/C6H12O/c1-2-3-4-5-6-7/h4-5,7H,2-3,6H2,1H3

2305-21-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name TRANS-2-HEXEN-1-OL

1.2 Other means of identification

Product number -
Other names hex-2-en-ol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
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:2305-21-7 SDS

2305-21-7Relevant articles and documents

The selective hydrogenation of furfural over intermetallic compounds with outstanding catalytic performance

Yang, Yusen,Chen, Lifang,Chen, Yudi,Liu, Wei,Feng, Haisong,Wang, Bin,Zhang, Xin,Wei, Min

, p. 5352 - 5362 (2019)

The selective hydrogenation of furfural (a biomass-derived platform compound, CO versus CC) is an important reaction for the production of chemical intermediates widely used in the polymer industry. Herein, we report three non-precious intermetallic compounds (IMCs) (Ni3Sn1, Ni3Sn2 and Ni3Sn4) derived from a layered double hydroxide (LDH) precursor, which are characterized by a highly uniform dispersion of IMC nanoparticles and display surprisingly improved catalytic performance toward the selective hydrogenation of furfural (CO) to furfuryl alcohol. In particular, the Ni3Sn2 IMC shows optimal catalytic behavior (conversion: 100%; selectivity: 99%), which exceeds that of reported non-precious metal catalysts and is even comparable to that of noble metal catalysts (e.g., Au, Pd and Pt). A combinative investigation based on in situ FT-IR, XANES and Bader charge studies verifies electron transfer from Sn to Ni, facilitating the activation of adsorption of the CO bond on the Ni top site, whilst inhibiting the adsorption of CC. Both experimental studies (in situ FT-IR and catalytic evaluations) and theoretical calculations (DFT calculations and microkinetic modeling) reveal a vertical adsorption configuration of furfural molecules over the Ni3Sn2 IMC, followed by the first hydrogenation at the carbon atom (the rate-determining step) and the second hydrogenation at the oxygen atom. This detailed study of the structure-selectivity relationship is substantiated by virtue of establishing the adsorption configuration of the substrate and the reaction pathway, which paves the way for the rational design and development of high-efficiency heterogeneous catalysts for selective hydrogenation reactions.

Suzuki,A. et al.

, p. 2792 - 2793 (1971)

Chromium-Catalyzed Production of Diols From Olefins

-

Paragraph 0111, (2021/03/19)

Processes for converting an olefin reactant into a diol compound are disclosed, and these processes include the steps of contacting the olefin reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the diol compound. While being contacted, the olefin reactant and the supported chromium catalyst can be irradiated with a light beam at a wavelength in the UV-visible spectrum. Optionally, these processes can further comprise a step of calcining at least a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.

The formyloxyl radical: Electrophilicity, C-H bond activation and anti-Markovnikov selectivity in the oxidation of aliphatic alkenes

Iron, Mark A.,Khenkin, Alexander M.,Neumann, Ronny,Somekh, Miriam

, p. 11584 - 11591 (2020/11/23)

In the past the formyloxyl radical, HC(O)O, had only been rarely experimentally observed, and those studies were theoretical-spectroscopic in the context of electronic structure. The absence of a convenient method for the preparation of the formyloxyl radical has precluded investigations into its reactivity towards organic substrates. Very recently, we discovered that HC(O)O is formed in the anodic electrochemical oxidation of formic acid/lithium formate. Using a [CoIIIW12O40]5- polyanion catalyst, this led to the formation of phenyl formate from benzene. Here, we present our studies into the reactivity of electrochemically in situ generated HC(O)O with organic substrates. Reactions with benzene and a selection of substituted derivatives showed that HC(O)O is mildly electrophilic according to both experimentally and computationally derived Hammett linear free energy relationships. The reactions of HC(O)O with terminal alkenes significantly favor anti-Markovnikov oxidations yielding the corresponding aldehyde as the major product as well as further oxidation products. Analysis of plausible reaction pathways using 1-hexene as a representative substrate favored the likelihood of hydrogen abstraction from the allylic C-H bond forming a hexallyl radical followed by strongly preferred further attack of a second HC(O)O radical at the C1 position. Further oxidation products are surmised to be mostly a result of two consecutive addition reactions of HC(O)O to the CC double bond. An outer-sphere electron transfer between the formyloxyl radical donor and the [CoIIIW12O40]5- polyanion acceptor forming a donor-acceptor [D+-A-] complex is proposed to induce the observed anti-Markovnikov selectivity. Finally, the overall reactivity of HC(O)O towards hydrogen abstraction was evaluated using additional substrates. Alkanes were only slightly reactive, while the reactions of alkylarenes showed that aromatic substitution on the ring competes with C-H bond activation at the benzylic position. C-H bonds with bond dissociation energies (BDE) ≤ 85 kcal mol-1 are easily attacked by HC(O)O and reactivity appears to be significant for C-H bonds with a BDE of up to 90 kcal mol-1. In summary, this research identifies the reactivity of HC(O)O towards radical electrophilic substitution of arenes, anti-Markovnikov type oxidation of terminal alkenes, and indirectly defines the activity of HC(O)O towards C-H bond activation.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 2305-21-7