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49714-67-2

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49714-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49714-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,1 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 49714-67:
(7*4)+(6*9)+(5*7)+(4*1)+(3*4)+(2*6)+(1*7)=152
152 % 10 = 2
So 49714-67-2 is a valid CAS Registry Number.

49714-67-2SDS

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 methyl 2,3-dimethylbut-3-enoate

1.2 Other means of identification

Product number -
Other names 3-Butenoic acid,2,3-dimethyl-,methyl ester

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:49714-67-2 SDS

49714-67-2Upstream product

49714-67-2Downstream Products

49714-67-2Relevant articles and documents

Remarkably Facile Solvolyses of Triflates via Carbocationic Processes in Dimethyl Sulfoxide

Creary, Xavier,Burtch, Elizabeth A.

, p. 1227 - 1234 (2007/10/03)

A number of triflates have been shown to undergo clean pseudo-first-order solvolysis reactions in DMSO-d6 to give products derived from carbocationic intermediates. Thus, t-BuCH(OTf)CO-t-Bu (5) and t-BuCH 2OTf (9) react readily in DMSO-d6 at 25 °C to give a rearranged oxosulfonium salts, and subsequent alkene products where methyl migration to the incipient cationic center occurs. t-BuCH(OTf)CO 2CH3 (14) gives analogous rearranged products, and 1-methylcyclopropyl triflate (21) gives a ring-opened allylic oxosulfonium salt. These triflates react primarily via kΔ pathways. 6-Methylbicyclo[3.1.0]hex-6-yl triflate (23), bicyclo[2.2.1hept-1-yl triflate (24), 1,6-methano[10]-annulen-11-yl triflate (25), (CH3) 2C(OTf)CO2CH3 (26), and (CH3) 2CCN(OTf) (29) all react in DMSO-d6 to give carbocation-derived products. PhCH(OTf)CF3 (33) and substituted analogues also react readily in DMSO-d6, and the Hammett ρ + value is -3.7. This suggests a "borderline" mechanism where the transition state has substantial charge development. The primary feature of these solvolyses is the high reactivity of all of these triflates in DMSO-d6. Thus, these triflates are all more reactive in DMSO-d 6 than in HOAc, and for most, rates are faster than in CF 3CH2OH. Triflates 5, 21, 29, and 33 are 10 8-109 times more reactive in DMSO-d6 than the corresponding mesylates. It is suggested that the decreased need for electrophilic solvation of trifiate anion, and the high cation solvating ability of DMSO, are the reasons for the high triflate reactivity in DMSO-d 6.

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