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Journal articles on the topic 'Secondary acetylenic alcohol'

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1

Juraboev, Fozil Mamasolievich. "SYNTHESIS OF ACETYLENIC DIOLS BASED ON ACETYLENIC ALCOHOLS." Research Focus 1, no. 2 (2022): 17–22. https://doi.org/10.5281/zenodo.7237916.

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<em>This article examines the influence of various factors on the performance of the main product in the synthesis of acetylene diols based on direct condensation of acetylene alcohols with aldehydes and ketones.The influence of factors such as the structure and nature of acetylene alcohols on the yield of acetylenediols, the composition and nature of carbonyl compounds, temperature, catalyst, reaction duration has been studied.</em>
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2

Juraboev, Fozil. "Research of the synthesis of new acetylene aminoalcohols." E3S Web of Conferences 486 (2024): 05011. http://dx.doi.org/10.1051/e3sconf/202448605011.

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The article describes the synthesis of acetylene amino alcohols based on secondary acetylene alcohol and amino compounds containing a hydroxyl group, the results of scientific research and their analysis to study the influence of factors such as temperature and catalyst on the yield of the product in the process. In the course of the work, a new type of acetylene amino alcohol was obtained with high efficiency as a result of the condensation reaction of ethanolamine (or diethanolamine) with hex-1-yn- 3-ol mediated by formaldehyde. Optimal conditions for carrying out synthesis processes have be
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3

Yoshida, Akihiro, and Koichi Mikami. "Dramatic Changeover of Regioselectivity in the Reduction of Propargylic Phosphates by Palladium(0)/SmI2/Proton Source System." Synlett 12, no. 12 (1997): 1375–76. http://dx.doi.org/10.1055/s-0032-1316827.

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Abstract Regiodivergent synthesis of allenes and acetylenes was established in the reduction of propargylic phosphates. The palladium(0)-catalyzed reduction of secondary propargylic phosphates with samarium(II) iodide gave allenes or acetylenes by tuning proton sources (tert-butyl alcohol or dimethyl L-tartrate).
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4

Toda, Fumio, and Koichi Tanaka. "Optical Resolution of Tertiary Acetylenic Alcohols and Secondary Alcohols by Complexation with Achiral Amines." Chemistry Letters 15, no. 11 (1986): 1905–8. http://dx.doi.org/10.1246/cl.1986.1905.

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5

Potkin, V. I., E. A. Dikusar, E. V. Vashkevich, N. G. Kozlov, and K. L. Moiseichuk. "Secondary Acetylenic Alcohols and Peroxides Derived from (Z)-3-chloro-3-(2-naphthyl)-2-propenal." Russian Journal of General Chemistry 73, no. 9 (2003): 1410–13. http://dx.doi.org/10.1023/b:rugc.0000015989.14867.e4.

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6

Rodríguez, Ricardo I., Elsie Ramírez, Francisco Yuste, Rubén Sánchez-Obregón, and José Alemán. "Asymmetric Synthesis of Secondary and Tertiary Propargylic Alcohols by Umpolung of Acetylenic Sulfones and ortho-Sulfinyl Carbanions." Journal of Organic Chemistry 83, no. 4 (2018): 1940–47. http://dx.doi.org/10.1021/acs.joc.7b02887.

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7

Velíšek, J., and K. Cejpek. "Biosynthesis of food constituents: Lipids. 1. Fatty acids and derivated compounds – a review." Czech Journal of Food Sciences 24, No. 5 (2011): 193–216. http://dx.doi.org/10.17221/3317-cjfs.

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This review article gives a survey of the principal biosynthetic pathways that lead to the most important common fatty acids and their derivatives occurring in foods and feeds. Fatty acids are further subdivided to saturated fatty acids and unsaturated fatty acids. This review is focused on the less common fatty acids including geometrical and positional isomers of unsaturated fatty acids, acetylenic fatty acids, branched-chain fatty acids, alicyclic fatty acids, epoxy fatty acids, hydroxy fatty acids, and oxo fatty acids. A survey is further given on the biosynthesis of the aliphatic very-lon
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8

Barlow, Michael G., Sabiha Tajammal, and Anthony E. Tipping. "Fluorinated acetylenes. Part 9 [1]. Reaction of furan with the phenylethanoate esters derived from trifluoropropynyl secondary alcohols." Journal of Fluorine Chemistry 62, no. 1 (1993): 51–61. http://dx.doi.org/10.1016/s0022-1139(00)80080-9.

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9

BARLOW, M. G., S. TAJAMMAL, and A. E. TIPPING. "ChemInform Abstract: Fluorinated Acetylenes. Part 9. Reaction of Furan with the Phenylethanoate Esters Derived from Trifluoropropynyl Secondary Alcohols." ChemInform 25, no. 44 (2010): no. http://dx.doi.org/10.1002/chin.199444128.

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10

Sobenina, L. N., D. N. Tomilin, O. V. Petrova, A. I. Mikhaleva, and B. A. Trofimov. "Synthesis of secondary propargyl alcohols from aromatic and heteroaromatic aldehydes and acetylene in the system KOH-H2O-DMSO." Russian Journal of Organic Chemistry 49, no. 3 (2013): 356–59. http://dx.doi.org/10.1134/s107042801303007x.

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11

OPPOLZER, W., and R. N. RADINOV. "ChemInform Abstract: Catalytic Asymmetric Synthesis of Secondary (E)-Allyl Alcohols from Acetylenes and Aldehydes via (1-Alkenyl)zinc Intermediates." ChemInform 23, no. 18 (2010): no. http://dx.doi.org/10.1002/chin.199218057.

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12

Sobenina, L. N., D. N. Tomilin, O. V. Petrova, A. I. Mikhaleva, and B. A. Trofimov. "ChemInform Abstract: Synthesis of Secondary Propargyl Alcohols from Aromatic and Heteroaromatic Aldehydes and Acetylene in the System KOH-H2O-DMSO." ChemInform 44, no. 39 (2013): no. http://dx.doi.org/10.1002/chin.201339066.

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13

Yuan, B., P. R. Veres, C. Warneke, et al. "Investigation of secondary formation of formic acid: urban environment vs. oil and gas producing region." Atmospheric Chemistry and Physics 15, no. 4 (2015): 1975–93. http://dx.doi.org/10.5194/acp-15-1975-2015.

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Abstract. Formic acid (HCOOH) is one of the most abundant carboxylic acids in the atmosphere. However, current photochemical models cannot fully explain observed concentrations and in particular secondary formation of formic acid across various environments. In this work, formic acid measurements made at an urban receptor site (Pasadena) in June–July 2010 during CalNex (California Research at the Nexus of Air Quality and Climate Change) and a site in an oil and gas producing region (Uintah Basin) in January–February 2013 during UBWOS 2013 (Uintah Basin Winter Ozone Studies) will be discussed.
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14

Nozaki, Kyoko, Koichiro Oshima, and Kiitiro Utimoto. "Facile Reduction of Dithiocarbonates Derived from Secondary Alcohols withn-Bu3SnH–Et3B and Synthesis of 2-Furanthiones and 2-Furanones by Intramolecular Addition of Alkoxythiocarbonyl Free Radicals to Acetylenic Linkages." Bulletin of the Chemical Society of Japan 63, no. 9 (1990): 2578–83. http://dx.doi.org/10.1246/bcsj.63.2578.

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15

NOZAKI, K., K. OSHIMA, and K. UTIMOTO. "ChemInform Abstract: Facile Reduction of Dithiocarbonates Derived from Secondary Alcohols with n-Bu3SnH-Et3B and Synthesis of 2-Furanthiones and 2-Furanones by Intramolecular Addition of Alkoxythiocarbonyl Free Radicals to Acetylenic Linkages." ChemInform 22, no. 4 (2010): no. http://dx.doi.org/10.1002/chin.199104135.

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16

Kolman, Robert Junior, Petra Švaco, Maja Majerić Elenkov, and Irena Dokli. "Synthesis and HHDH‐Catalyzed Kinetic Resolution of Propargylic Epoxides." Advanced Synthesis & Catalysis, August 21, 2024. http://dx.doi.org/10.1002/adsc.202400734.

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The versatile reactivity of propargylic epoxides and alcohols, due to the presence of a triple bond, is used in the synthesis of various organic compounds and building blocks. However, there are not many known methods for the preparation of optically pure propargylic epoxides and alcohols, and the existing ones often require specific reagents. Halohydrin dehalogenases (HHDHs) can be used to obtain enantiomerically pure compounds from racemic epoxides. These important biocatalysts facilitate epoxide ring‐opening reactions with unnatural nucleophiles such as azides. Here we report the first bioc
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17

Jana, Debashis, Sampad Malik, Gopal Kanrar, Supriyo Halder, Srijita Naskar, and Kausikisankar Pramanik. "One‐pot cascade [3 + 2 + 1] annulation: synthesis and mechanistic insight of s‐triazines and pyrimidines using azo‐supported metalloradical nickel catalyst." ChemCatChem, January 20, 2025. https://doi.org/10.1002/cctc.202401851.

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Highly efficient Ni‐catalyzed C–N/C–C bond formation from amidines during the [3 + 2 + 1] annulation by primary alcohols alone or by primary alcohols with secondary alcohols/phenyl acetylenes has been successfully accomplished toward scaled synthesis of s‐triazine and pyrimidines, respectively. A strongly π‐acidic bis‐azo NNN‐pincer scaffold was successfully introduced for dual functionalization such as to augment the sustainability of the molecular catalyst by enhancing the metal‐ligand integrity and interposing a potent electron‐sink chromophore. The high yield synthesis (up to 94%) of poly‐
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18

TODA, F., and K. TANAKA. "ChemInform Abstract: Optical Resolution of Tertiary Acetylenic Alcohols and Secondary Alcohols by Complexation with Achiral Amines." ChemInform 18, no. 23 (1987). http://dx.doi.org/10.1002/chin.198723069.

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