28974-17-6

Usage

Uses

Used in Organic Synthesis:
(1R)-2-exo-acetoxy-bornane is used as a chiral building block for the synthesis of various organic compounds, leveraging its unique stereochemistry to create enantioselective products.
Used in Pharmaceutical Production:
(1R)-2-exo-acetoxy-bornane is employed as a chiral reagent in the development and production of pharmaceuticals, contributing to the creation of enantiomerically pure drugs.
Used in Asymmetric Synthesis and Catalysis:
Due to its stereochemistry, (1R)-2-exo-acetoxy-bornane is used as a chiral reagent in asymmetric synthesis and catalysis, enabling the selective formation of desired enantiomers in chemical reactions.
Used in Flavors and Fragrances Industry:
(1R)-2-exo-acetoxy-bornane is used as a component in the flavors and fragrances industry, capitalizing on its pleasant aroma and flavor properties to enhance consumer products.

Upstream product

• 3012-37-1 benzyl thiocyanate 
• 5794-04-7 camphene 
• 24393-70-2 isoborneol 
• 125-12-2 isobornyl acetate 
• 7785-70-8 (+)-α-pinene 
• 64-19-7 acetic acid 
• 464-17-5 (+-)-bornylene 
• 565-00-4 dl-camphene 
• 79-92-5 camphene 
• 108-24-7 acetic anhydride 
• 86119-84-8 phosphoric acid 
• 7664-93-9 sulfuric acid 
• 80-56-8 Pinene 
• 75-36-5 acetyl chloride 

Downstream Products

• 7210-37-9 (R)-3-hydroxy-3-phenylbutyric acid methyl ester 
• 124-76-5 isoborneol 
• 565-00-4 dl-camphene 
• 54717-80-5 bornyl acetoacetate 
• 64-19-7 acetic acid 
• 464-43-7 borneol 
• 71424-71-0 iso-Bornyl acetate 
• 91839-99-5 dl-6-acetoxy-bornan-3-one 
• 76-22-2 Camphor 
• 39850-78-7 5-Ketoborneol 
• 74-85-1 ethene 
• 464-17-5 1,7,7-trimethylbicyclo[2.2.1]hept-2-ene 
• 508-32-7 1,7,7-trimethyltricyclo[2.2.1.02,6]heptane 
• 79-92-5 camphene 

Relevant academic research and scientific papers

Simple Plug-In Synthetic Step for the Synthesis of (?)-Camphor from Renewable Starting Materials

Racemic camphor and isoborneol are readily available as industrial side products, whereas (1R)-camphor is available from natural sources. Optically pure (1S)-camphor, however, is much more difficult to obtain. The synthesis of racemic camphor from α-pinene proceeds via an intermediary racemic isobornyl ester, which is then hydrolyzed and oxidized to give camphor. We reasoned that enantioselective hydrolysis of isobornyl esters would give facile access to optically pure isoborneol and camphor isomers, respectively. While screening of a set of commercial lipases and esterases in the kinetic resolution of racemic monoterpenols did not lead to the identification of any enantioselective enzymes, the cephalosporin Esterase B from Burkholderia gladioli (EstB) and Esterase C (EstC) from Rhodococcus rhodochrous showed outstanding enantioselectivity (E>100) towards the butyryl esters of isoborneol, borneol and fenchol. The enantioselectivity was higher with increasing chain length of the acyl moiety of the substrate. The kinetic resolution of isobornyl butyrate can be easily integrated into the production of camphor from α-pinene and thus allows the facile synthesis of optically pure monoterpenols from a renewable side-product.

Method for synthesizing bornyl acetate from turpentine

The invention discloses a method for synthesizing bornyl acetate from turpentine, which relates to the technical field of deep processing of turpentine. The preparation method comprises the followingsteps of proportioning titanium sulfate and hydroxycarboxylic acid to form a composite catalyst, mixing turpentine, acetic acid and the composite catalyst, and reacting in a stirring state, after thereaction is finished, filtering, and removing acetic acid from the filtrate to obtain a solution containing bornyl acetate, neutralizing the solution containing the bornyl acetate, and washing with water to obtain a bornyl acetate crude product, and then fractionating the crude product of the bornyl acetate to obtain the bornyl acetate. The synthesis method provided by the invention is high in catalytic activity, low in cost and high in selectivity on the borneol acetate, and does not need to use a raw material with too high pinene content.

Heterogeneous zeolite-based catalyst for esterification of α-pinene to α-terpinyl acetate

The purpose of this study is to determine the most effective type of heterogeneous catalyst such as natural zeolite (ZA), Zr-natural zeolite (Zr/ZA) and zeolite Y (H/ZY) in esterification of α-pinene. α-terpinyl acetate was successfully synthesized from α-pinene and acetic anhydride by their heterogeneous catalysts. The esterification reaction was carried out with reaction time, temperature and zeolite catalysts. The most effective catalysts used in the synthesis of α-terpinyl acetate is catalyst H/ZY with the yield is 52.83% at 40oC for the time 4 h with a selectivity of 61.38%. The results showed that the effective separation of catalyst could contribute to developing a new strategy for the synthesis of α-terpinyl acetate.

Method for synthesizing isobornyl acetate by camphene

The invention discloses a method for synthesizing isobornyl acetate by camphene. The method comprises the following steps of adding camphene, glacial acetic acid, a main catalyst (hydroxycarboxylic acid) and an additive into a reaction kettle according to a mass ratio of 100:(20 to 400):(1 to 50):(1 to 20), starting to stir, controlling the temperature to 40 to 100 DEG C, and reacting for 2 to 24h, so as to obtain a synthesized product; adding a small amount of water into the synthesized product, standing and delaminating, wherein the upper oil layer is a target product containing isobornyl acetate, the lower layer is acid water containing the catalyst and acetic acid, and the acid water is dewatered and recycled; adding the target product into a water washing tank, adding alkaline water to neutralize, and then adding water to wash, so as to obtain a crude product of the isobornyl acetate; relieving pressure and distilling, so as to obtain the refined isobornyl acetate. The method forsynthesizing the isobornyl acetate by catalyzing the camphene has the advantages that the obtained product has high yield and high purity, and is easy to separate; the used catalyst has high catalyzing activity; the preparation is simple, the repeatability is good, the toxicity is avoided, the corrosion property is low, the isobornyl acetate belongs to regeneration resources, and the industrialization product is easy.

Rice husk ash: A new, cheap, efficient, and reusable reagent for the protection of alcohols, phenols, amines, and thiols

Amild, efficient, and eco-friendly protocol for the protection of alcohols and phenols as trimethylsilyl ethers has been developed using rice husk ash as a reagent. This reagent is also able to catalyze the acetylation of alcohols, phenols, thiols, and amines with acetic anhydride. All reactions were performed under mild conditions in good to high yields. Copyright

Microwave-assisted α-pinene acidic catalytic isomerisation

A comparative study of microwave assisted α-pinene acidic catalytic isomerisation reactions with near-critical water procedure under microwave irradiation is presented. This study can be performed because in both cases the mechanism is similar, namely an acidiccatalyzed rearrangement. The non-critical method technique is milder using a lower temperature and pressure and a shorter reaction time than near-critical water conditions. The general aspect of the selectivity of the reaction products is changed, being higher for α-terpinolene and γ-terpinolene and lower for limonene and camphene compared to the non-critical conditions.

Liquid phase acetoxylation of α-pinene over Amberlyst-70 ion-exchange resin

Heterogeneously-catalyzed and solvent-catalyzed liquid phase acetoxylation of α-pinene with acetic acid acting as both a solvent and a reagent was studied. Both solvent-catalyzed and catalytic experiments were carried out and various reaction conditions were studied. The influence of temperature, pressure, solvent and gas milieu were taken into account. Bornyl, fenchyl, verbenyl as well as α-terpinyl acetates, limonene, camphene and γ-terpinene were found among reaction products. The addition of the catalyst allowed for maximization of the yield of bornyl acetate. The predominant products obtained were α-terpinyl, verbenyl and bornyl acetates. The reaction pathways were identified and evaluated. The aim of this work was to study the feasibility of batch acetoxylation of α-pinene. The analysis of the complex product distribution is not trivial and, consequently, resolving the reaction network was important. The optimized reaction conditions were searched for aiming at an efficient conversion of α-pinene to a mixture of valuable products.

Iron(III) tosylate catalyzed acylation of alcohols, phenols, and aldehydes

Iron(III) p-toluenesulfonate (tosylate) is an efficient catalyst for acetylation of alcohols, phenols, and aldehydes. The acetylation of 1° and 2° alcohols, diols, and phenols proceeded smoothly with 2.0 mol % of catalyst. However, the reaction worked well with only a few 3° alcohols. The methodology was also applicable to the synthesis of a few benzoate esters but required the use of 5.0 mol % catalyst. Aldehydes could also be converted into the corresponding 1,1-diesters (acylals) under the reaction conditions. Iron(III) tosylate is an inexpensive, and easy to handle, commercially available catalyst.

A mild and efficient method for the methoxymethylation and acetylation of alcohols promoted by benzyltriphenylphosphonium tribromide

A mild and efficient method for the conversion of alcohols to their corresponding methoxymethyl ethers and acetates using benzyltriphenylphosphonium tribromide (BTPTB) as catalyst is described. All reactions were performed under completely heterogeneous reaction conditions in good to high yields.