40348-66-1

Basic information

• Product Name: (R)-1,2-Butanediol
• Synonyms: (R)-(+)-1,2-BUTANEDIOL;(2R)-1,2-Butanediol;(R)-Butane-1,2-diol;(2R)-1,2-Dihydroxybutane;(2R)-Butane-1,2-diol;(R)-1,2-Butanediol;(R)-1,2-Butanediol,99%e.e.
• CAS NO: 40348-66-1
• Molecular Formula: C₄H₁₀O₂
• Molecular Weight: 90.12
• Product Categories: API intermediates
• Mol File: 40348-66-1.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 60°C/1mmHg(lit.)
• Flash Point: 93.3 °C
• Appearance: /
• Density: 1.001g/cm³
• Vapor Pressure: 0.148mmHg at 25°C
• Refractive Index: 1.4360-1.4400
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: (R)-1,2-Butanediol(CAS DataBase Reference)
• NIST Chemistry Reference: (R)-1,2-Butanediol(40348-66-1)
• EPA Substance Registry System: (R)-1,2-Butanediol(40348-66-1)

Safety Data

• Hazardous Substances Data: 40348-66-1(Hazardous Substances Data)

Usage

General Description

(R)-1,2-Butanediol, also known as R-butanediol, is a chiral compound that consists of two alcohol functional groups. It is a colorless, viscous liquid with a mildly sweet taste and is often used as a solvent in chemical reactions and as a humectant in the production of cosmetics and personal care products. It also has potential applications as a precursor in the synthesis of pharmaceuticals, agrochemicals, and other fine chemicals. Additionally, (R)-1,2-Butanediol has been studied for its potential use as a bio-based fuel or fuel additive, and ongoing research continues to explore its potential in various industrial and commercial applications.

InChI:InChI=1/C4H10O2/c1-2-4(6)3-5/h4-6H,2-3H2,1H3/t4-/m1/s1

Upstream product

• 106-88-7 ethyloxirane 
• 100-52-7 benzaldehyde 
• 584-03-2 1,2-dihydroxybutane 
• 86106-09-4 (R)-(+)-3,4-dihydroxy-1-butene 
• 28954-12-3 (2S,3S)-2-amino-3-hydroxybutanoic acid 

Downstream Products

• 2482-57-7 1-bromo-2-butanol 
• 103745-07-9 (R)-2-hydroxybutyl p-toluenesulfonate 
• 167354-12-3 (2R)-1-(benzyloxy)-2-butanol 
• 123-72-8 butyraldehyde 
• 30608-62-9 (S)-(-)-1,2-epoxybutane 
• 106-88-7 (R)-(+)-1,2-epoxybutane 

Relevant articles and documents

Kinetic Resolution of 1,2-Diols via NHC-Catalyzed Site-Selective Esterification

A kinetic resolution of 1,2-diols bearing both a secondary and a primary alcohol motif through an N-heterocyclic carbene-catalyzed oxidative acylation reaction has been developed. A site- and enantioselective esterification reaction is involved for this process. Both the monoacylated diols obtained and the remaining enantioenriched 1,2-diols are versatile building blocks for the preparation of functional molecules with proven biological activities.

A new dinuclear chiral salen complexes for asymmetric ring opening and closing reactions: Synthesis of valuable chiral intermediates

A new dinuclear chiral Co(salen) complexes bearing group 13 metals have been synthesized and characterized. The easily prepared complexes exhibited very high catalytic reactivity and enantioselectivity for the asymmetric ring opening of epoxides with H2O, chloride ions and carboxylic acids and consequently provide enantiomerically enriched terminal epoxides (>99% ee). It also catalyzes the asymmetric cyclization of ring opened product, to prepare optically pure terminal epoxides in one step. The homogeneous dinuclear chiral Co(salen) have been covalently immobilized on MCM-41. The potential benefits of heterogenization include facilitation of catalyst separation and recyclability requiring very simple techniques. The system described is very efficient.

Highly reactive and enantioselective kinetic resolution of terminal epoxides with H2O and HCl catalyzed by new chiral (salen)Co complex linked with Al

The asymmetric hydrolytic kinetic resolution (HKR) of racemic terminal epoxides by new easily synthesized dimeric chiral (salen)Co bearing Al, provides a practical and straightforward method for the synthesis of enantiomerically enriched terminal epoxides (>99% ee) and diols. An inorganic acid, HCl is applied first time for the asymmetric ring opening reaction of terminal epoxides. Reactions are conveniently carried out at room temperature under an air atmosphere.