{"id":4937,"date":"2021-12-27T13:30:08","date_gmt":"2021-12-27T13:30:08","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4937"},"modified":"2026-04-28T10:41:54","modified_gmt":"2026-04-28T10:41:54","slug":"commonly-used-reagents-ethyl-vinyl-ether","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/id\/commonly-used-reagents-ethyl-vinyl-ether\/","title":{"rendered":"Reagen yang umum digunakan-etil vinil eter"},"content":{"rendered":"<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> For paint and coating topics, formulators usually compare flow, substrate fit, surface quality, and durability together because the same adjustment can improve one property while weakening another.<\/p>\n<!-- lc-qa-end -->\n\n\n<p>\u3010Nama bahasa Inggris\u3011 Etil Vinil Eter<\/p>\n\n\n\n<p>\u3010Rumus molekul\u3011 C4H8O<\/p>\n\n\n\n<p>\u3010Berat Molekul\u3011 72,11<\/p>\n\n\n\n<p>\u3010Nomor Registrasi CAS\u3011[109-92-2]<\/p>\n\n\n\n<p>\u3010Rumus struktural\u3011 CH3CH2OCH = CH2<\/p>\n\n\n\n<p>[Sifat fisik] tl 33 oC, d 0,753 g\/cm3. Larut dalam sebagian besar pelarut organik dan dapat digunakan dalam berbagai pelarut organik.<\/p>\n\n\n\n<p>[Persiapan dan Komoditas] Reagen ini dijual di perusahaan reagen kimia di dalam dan luar negeri.<\/p>\n\n\n\n<p>[Tindakan Pencegahan] Reagen ini adalah bahan kimia yang sangat mudah menguap dan mudah terbakar. Dianjurkan untuk menyimpannya di tempat bersuhu rendah dan kering, serta menggunakannya dalam lemari asam.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>Etil vinil eter terutama digunakan sebagai gugus pelindung gugus hidroksil, pereaksi transfer vinil, dan berpartisipasi dalam reaksi adisi siklisasi dalam sintesis organik.<\/p>\n\n\n\n<p>Di antara banyak gugus pelindung untuk gugus hidroksi, \u03b1-etoksi etil eter (EE) yang dibentuk oleh etil vinil eter dan hidroksi adalah salah satu gugus pelindung yang paling umum digunakan dan nyaman. Reaksi umumnya membutuhkan katalis asam kuat, TFA dan TsOH dapat digunakan untuk tujuan ini, yang paling umum digunakan adalah PPTS. Reaksi biasanya diselesaikan dengan pengadukan selama beberapa jam pada suhu kamar. Dalam kebanyakan kasus, hasil produk di atas 95% (Formula 1) [1,2]. Gugus pelindung EE dapat dengan mudah menyelesaikan reaksi deproteksi dalam kondisi asam. PPTS-EtOH dan aq. HCl-MeOH adalah metode yang direkomendasikan (Persamaan 2)<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20191127\/20191127095147_88752.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Di bawah aksi katalis turunan asetat merkuri, etil vinil eter dan hidroksil mengalami reaksi transfer vinil untuk menghasilkan produk vinil eter yang sesuai (Formula 3) [5]. Jika katalis logam paladium digunakan, maka secara efektif dapat menghindari penggunaan katalis logam merkuri (Persamaan 4) [6]. Reaksi ini lebih bermakna karena produk dapat mengalami reaksi kondensasi lebih lanjut atau metatesis olefin [7,8].<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20191127\/20191127095200_82254.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Etil vinil eter dan alil hidroksil mengalami reaksi transfer vinil untuk menghasilkan produk vinil eter yang sesuai. Reaksi ini biasanya diselesaikan dengan katalisis asetat merkuri. Memanaskan produk dalam toluena atau xilena dapat menginduksi penataan ulang Claisen yang sesuai, sehingga reaksi tersebut memiliki nilai sintetis yang penting. Dalam keadaan normal, proses reaksi dua langkah dapat diselesaikan dalam kondisi \"memasak satu panci\" (Persamaan 5, Persamaan 6) [9 ~ 11].<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20191127\/20191127095310_54634.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Dengan adanya katalis asam Lewis, etil vinil eter juga dapat mengalami reaksi siklisasi yang sesuai [12,13].<\/p>\n\n\n<!-- lc-commercial-start -->\n<h2>A practical checklist for coating formulation decisions<\/h2>\n<p>In conventional coating work, technical buyers usually move fastest when they define the film-performance target first and then review rheology, substrate compatibility, additives, and long-term durability as one system instead of isolated tweaks.<\/p>\n<ul>\n<li><strong>Start from the application scenario:<\/strong> furniture, powder coating, industrial paint, and waterborne systems often reward different formulation priorities.<\/li>\n<li><strong>Check surface quality and process stability together:<\/strong> leveling, wetting, foam control, and drying often interact strongly.<\/li>\n<li><strong>Review the film after full cure or drying:<\/strong> adhesion, hardness, weatherability, and color stability usually decide the commercial result.<\/li>\n<li><strong>Use targeted additive screening:<\/strong> wetting, leveling, defoaming, and wear-resistance additives work best when the defect is clearly defined.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> A balanced defoamer reference for waterborne coatings and many general foam-control screens.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Useful when printing-ink and UV-ink compatibility matter in the defoaming screen.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> A stronger process-defoaming option when persistent foam survives harsher conditions.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/id\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> A strong wetting-agent reference for inks, coatings, and difficult substrate wetting.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why can a coating with good initial appearance still fail later?<\/strong><br \/>Because many failures show up only after full cure, storage, or service exposure, when adhesion, flexibility, or weatherability becomes the limiting factor.<\/p>\n<p><strong>Should coating additives be chosen one by one outside the full formula?<\/strong><br \/>It is usually safer to screen them inside the real formula because resin choice, pigments, and the rest of the additive package can change the result.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>\u3010English name\u3011Ethyl Vinyl Ether \u3010Molecular formula\u3011 C4H8O \u3010Molecular Weight\u301172.11 \u3010CAS Registration Number\u3011[109-92-2] \u3010Structural formula\u3011CH3CH2OCH=CH2 [Physical properties] bp 33 oC, d 0.753 g\/cm3. It is soluble in most organic solvents and<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-4937","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Commonly used reagents-ethyl vinyl ether - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"\u3010English name\u3011Ethyl Vinyl Ether \u3010Molecular formula\u3011 C4H8O \u3010Molecular Weight\u301172.11 \u3010CAS Registration Number\u3011[109-92-2] \u3010Structural formula\u3011CH3CH2OCH=CH2...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/id\/commonly-used-reagents-ethyl-vinyl-ether\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Commonly used reagents-ethyl vinyl ether - 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