Cyclobutanecarboxylic acid
3721-95-7O=C(O)C1CCC1TXWOGHSRPAYOML-UHFFFAOYSA-N3721-95-7DTXSID3057725CHEMBL3560137安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Danger
H302 (37.5%): Harmful if swallowed [Warning Acute toxicity, oral]
P260, P261, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P362+P364, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 104 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Chemical: Cyclobutanecarboxylic acid
Status: Active Update: 28-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/24735
Cyclobutanecarboxylic acid: Does not have an individual approval but may be used under an appropriate group standard
用途シクロブタンカルボン酸はその独特の化学的特性から多くの合成化学の領域で利用されます具体的には医薬品の合成中間体香料の製造または有機合成の触媒として活用されていますさらに材料科学の分野では特定のポリマー材料の合成に用いられることもあります
使用Cyclobutanecarboxylic acid is used in water treatment, row materials for sodium fluosilicate potassium fluosilicateammonium fluosilicatecopper fluosilicatebarium fluosilicate and other fluosilicates and silicic tetrafluoride. It is also used in refining lead of electrolysis, as mordant and in the treatment of metal surface.
製造方法Cyclobutanecarboxylic acid synthesis: Put 1,1-Cyclobutanedicarboxylic acid into a distillation device for heating, decarboxylate at about 160°C to release carbon dioxide, then heat for distillation, collect 189-195°C fractions as crude product, and re-distill to obtain the finished product cyclobutanecarboxylic acid. Yield 86%-91%.
純化方法Dissolve the acid in aqueous HCO 3 then acidify with HCl and extract it into Et2O, wash with H2O, dry (Na2SO4), concentrate to a small volume, then distil it through a glass helices packed column. The S-benzylisothiuronium salt has m 176o (from EtOH), the anilide has m 112.5-113o, and the p-toluide has m 123o. [Payne & Smith J Org Chem 22 1680 1957, Kantaro & Gunning J Am Chem Soc 73 480 1951, Stodola & Heisig Org Synth Coll Vol III 213 1955, Beilstein 9 H 5.]
読み込み中…
化学的特性CLEAR COLOURLESS TO SLIGHTLY AMBER LIQUID