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36536-46-6

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36536-46-6 Usage

General Description

(+/-)-B-butyrolactone, also known as gamma-butyrolactone (GBL), is a chemical compound with a wide range of industrial and commercial applications. It is a colorless, oily liquid with a slightly sweet taste, and is commonly used as a solvent in various industries, including pharmaceuticals, agriculture, and electronics. GBL is also used in the production of some polymers and as a precursor in the manufacturing of certain chemicals. Additionally, it has been used as a cleaning agent and in the illegal production of the drug gamma-hydroxybutyrate (GHB). However, due to its potential for misuse and abuse, GBL is classified as a controlled substance in some countries and is strictly regulated.

Check Digit Verification of cas no

The CAS Registry Mumber 36536-46-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,6,5,3 and 6 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 36536-46:
(7*3)+(6*6)+(5*5)+(4*3)+(3*6)+(2*4)+(1*6)=126
126 % 10 = 6
So 36536-46-6 is a valid CAS Registry Number.
InChI:InChI=1/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3

36536-46-6Relevant articles and documents

Carbonylative Polymerization of Epoxides Mediated by Tri-metallic Complexes: A Dual Catalysis Strategy for Synthesis of Biodegradable Polyhydroxyalkanoates

Li, Wen-Bing,Liu, Ye,Lu, Xiao-Bing,Yang, Jin-Chuang,Yang, Jun

supporting information, (2022/01/20)

Polyhydroxyalkanoates (PHAs) are a unique class of commercially manufactured biodegradable polyesters with properties suitable for partially substituting petroleum-based plastics. However, high costs and low volumes of production have restricted their application as commodity materials. In this study, tri-metallic complexes were developed for carbonylative polymerization via a dual catalysis strategy, and 17 products of novel PHAs with up to 38.2 kg mol?1 Mn values were discovered. The polymerization proceeds in a sequential fashion, which entails the carbonylative ring expansion of epoxide to β-lactone and its subsequent ring-opening polymerization that occurs selectively at the O-alkyl bond via carboxylate species. The wide availability and structural diversity of epoxide monomers provide PHAs with various structures, excellent functionalities, and tunable properties. This study represents a rare example of the preparation of PHAs using epoxides and carbon monoxide as raw materials.

Acrylonitrile Derivatives from Epoxide and Carbon Monoxide Reagents

-

Paragraph 0223-0227, (2019/01/15)

The present invention is directed to reactor systems and processes for producing acrylonitrile and acrylonitrile derivatives. In preferred embodiments of the present invention, the processes comprise the following steps: introducing an epoxide reagent and carbon monoxide reagent to at least one reaction vessel through at least one feed stream inlet; contacting the epoxide reagent and carbon monoxide reagent with a carbonylation catalyst to produce a beta-lactone intermediate; polymerizing the beta-lactone intermediate with an initiator in the presence of a metal cation to produce a polylactone product; heating the polylactone product under thermolysis conditions to produce an organic acid product; optionally esterifying the organic acid product to produce one or more ester products; and reacting the organic acid product and/or ester product with an ammonia reagent under ammoxidation conditions to produce an acrylonitrile product.

An aluminum(III) picket fence phthalocyanine-based heterogeneous catalyst for ring-expansion carbonylation of epoxides

Jiang, Jianwei,Yoon, Sungho

, p. 6120 - 6125 (2019/03/19)

An effective heterogeneous catalyst for ring-expansion carbonylation of epoxides may have additional advantages over the homogeneous counterpart in terms of facile product separation and recyclability. A new Al(iii) picket fence phthalocyanine complex was synthesized and directly knitted using the Friedel-Crafts reaction to prepare a solid porous network, which was ultimately used to immobilize [Co(CO)4]- ions. The resulting heterogeneous catalyst, [Lewis acid]+[Co(CO)4]-, efficiently catalyzes the conversion of various epoxides into the corresponding β-lactones with high selectivity (99%) and stoichiometric conversion under mild reaction conditions, along with good functional group tolerance.

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