59078-31-8

Basic information

• Product Name: 2-Propynoic acid, 3-phenyl-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester
• CAS NO: 59078-31-8
• Molecular Formula: C19H24O2
• Molecular Weight: 284.398
• Mol File: 59078-31-8.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 2-Propynoic acid, 3-phenyl-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Propynoic acid, 3-phenyl-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester(59078-31-8)
• EPA Substance Registry System: 2-Propynoic acid, 3-phenyl-, (1R,2S,5R)-5-methyl-2-(1-methylethyl)cyclohexyl ester(59078-31-8)

Safety Data

• Hazardous Substances Data: 59078-31-8(Hazardous Substances Data)

Upstream product

• 7299-58-3 phenylpropiolyl chloride 
• 2216-51-5 (-)-menthol 
• 637-44-5 phenylpropyolic acid 
• 27303-99-7 sodium menthoxide 
• 201230-82-2 carbon monoxide 
• 536-74-3 phenylacetylene 

Downstream Products

• 1558752-82-1 C₃₇H₄₀O₃ 
• 217090-70-5 (Z)-2-((R)-Methoxy-phenyl-methyl)-3-phenyl-but-2-enoic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester 
• 217090-71-6 (E)-2-((R)-Methoxy-phenyl-methyl)-3-phenyl-but-2-en-1-ol 
• 217090-66-9 (Z)-2-((R)-Hydroxy-phenyl-methyl)-3-phenyl-but-2-enoic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester 

Relevant articles and documents

Synthesis of 2-Alkynoates by Palladium(II)-Catalyzed Oxidative Carbonylation of Terminal Alkynes and Alcohols

A homogeneous PdIIcatalyst, utilizing a simple and inexpensive amine ligand (TMEDA), allows 2-alkynoates to be prepared in high yields by an oxidative carbonylation of terminal alkynes and alcohols. The catalyst system overcomes many of the limitations of previous palladium carbonylation catalysts. It has an increased substrate scope, avoids large excesses of alcohol substrate and uses a desirable solvent. The catalyst employs oxygen as the terminal oxidant and can be operated under safer gas mixtures.

Helical Disubstituted Polyacetylenes: Synthesis and Chiroptical Properties of Poly(phenylpropiolate)s

Disubstituted polyacetylenes with helical chirality have been rarely prepared due to the involved synthetic difficulty, and we here report a facile polymerization system for the synthesis of such polymers. Two groups of chiral acetylenes, i.e., C6H5C≡CCO2R* {R* = [(1S)-endo]-(-)-borneyl (1), (1R,2S,5R)-(-)-menthyl (5), cholesteryl (6)} and C6H5C≡CCO2C 6H4CO2R* [R* = borneyl (2), menthyl (3), cholesteryl (4)], are prepared by esterifications of phenylpropiolic acids with borneol, menthol, and cholesterol. Polymerizations of 1-4 are effected by WCl6-Ph4Sn, giving poly(phenylpropiolate)s P1-P4 with high molecular weights in moderate yields. The structures and properties of the polymers are characterized and evaluated by IR, UV, NMR, CD, TGA, and SEM analyses. All the polymers are stable: neither decreases in their molecular weights nor changes in their spectra are detected after the polymers have been stored on shelf for ～3 years, and no weight losses are recorded when the polymers are heated to ～300 °C. Although the polymers do not possess regioregular Z or conformations, the polyacetylene backbones are induced to helically rotate by the chiral pendants, as verified by the strong Cotton effects in the backbone absorption region of the polymers (molar ellipticity up to 102 300 deg cm2 dmol-1). The polymers exhibit helical thermochromism, with their chain helicity being continuously and reversibly tunable by temperature change. The helical polymers are capable of self-assembling, as demonstrated by the formation of twisted ribbons upon diffusing a THF solution of P3 into hexane.