- Menthol derivatives, mixture thereof, and preparation method and applications of menthol derivatives
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The invention discloses menthol derivatives, a mixture thereof, and a preparation method and applications of the menthol derivatives. Menthol carries out esterification reactions, then molecular design is performed to synthesize the menthol derivatives with a special molecular structure or a special group, and through the modification on the chemical structure, a novel material, which has a highermelting point and low volatility and is applied to temporary cultural relic reinforcement, is provided. The melting points of the menthol derivatives are gradient, the volatile speed of the menthol derivatives is slower than that of menthol, thus the removing of the menthol derivatives is controllable, and the requirements of cultural relic protection can be satisfied. The provided menthol derivatives are used to temporarily strengthen cultural relic onsite, and have a wide application range.
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Paragraph 0101; 0104; 0105; 0106
(2018/10/19)
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- Use of readily available monomers in the synthesis of vinyl copolymers with optical activity arising from the configuration of stereogenic carbon atoms in the main chain
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The present work was aimed at synthesising vinyl copolymers with optical activity arising only from the configuration of the stereogenic carbon atoms in the main chain. By copolymerising optically active diesters of fumaric acid with styrene, backbones wi
- Donnelly, Irene H.,Kambouris, Peter,Nonhebel, Derek C.,Rohr, Thomas,Sherrington, David C.
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p. 1821 - 1829
(2007/10/03)
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- Synthesis and biological evaluation of a monocyclic, fully functional analogue of compactin
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Compound 8, a monocyclic analogue of compactin, has been prepared and its efficacy as an inhibitor of 3-hydroxy-3-methylglutarylcoenzyme A reductase (HMGR) evaluated. The synthesis (Schemes I and II) requires seven steps starting with di-(-)-menthyl fumar
- Heathcock,Davis,Hadley
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p. 197 - 202
(2007/10/02)
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- Chiral Induction in Photochemical Reactions, VI. - Asymmetric Control of the Addition of Hemipinacol Radicals to Chiral Maleates and Fumarates
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The photocatalysed addition of 2-propanol (2) to the monoesters of maleic acid 1b and 1d yields the esters of terebic acid 5b and 5d with a diastereoselectivity up to 62percent de.The major diastereomer 5d has (2S)-configuration.Diastereoselectivity of 23
- Vassen, Reiner,Runsink, Jan,Scharf, Hans-Dieter
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p. 3492 - 3497
(2007/10/02)
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