Binol
データを補完しています。しばらくしてからページを更新すると最新の内容を表示できます
18531-94-7Oc1ccc2ccccc2c1-c1c(O)ccc2ccccc12PPTXVXKCQZKFBN-UHFFFAOYSA-N(S)-(-)-1,1'-Bi-2-naphthol is a member of naphthols.
18531-94-7、18531-99-2、602-09-5DTXSID9060526CHEMBL138718CHEBI:189881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
H301 (96.2%): Toxic if swallowed [Danger Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 53 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
H301 (90%): Toxic if swallowed [Danger Acute toxicity, oral]
Status: Active Update: 13-03-2013 https://echa.europa.eu/registration-dossier/-/registered-dossier/7895
Status: Active Update: 23-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/25133
Status: Active Update: 11-11-2019 https://echa.europa.eu/registration-dossier/-/registered-dossier/30088
1,1'-Binaphthyl-2,2'-diol: Does not have an individual approval but may be used under an appropriate group standard
Acute Tox. 3 (90%)
Acute Tox. 3 (92%)
Acute Tox. 3 (96.2%)
用途不斉反応研究用。
使用Chiral binapthol imminium salt precursor. Salts were used for an asymmetric epoxidation of olefins.
純化方法Dissolve it in cold 2.5N NaOH, extract with CH2Cl2, and acidify with 5% HCl. Collect the white precipitate and recrystallise it from aqueous EtOH and dry it in a vacuum [Akimoto & Yamada Tetrahedron 27 5999 1971]. It is optically stable in dioxane-water (100o/24hours). Racemisation: 72% in 1.2N HCl at 100o/24hours and 68% in 0.67M KOH in BuOH at 118o/23hours [Kyba et al. J Am Chem Soc 95 2693 1973]. It has also been crystallised from *C6H6 (solubility is 1%) using Norite or aqueous EtOH after chromatography through silica gel, eluting with Me2CO/*C6H6. [Kyba et al. J Org Chem 42 4173 1977; see also Brussee & Jansen Tetrahedron Lett 24 3261 1983, Akimoto & Yamada Tetrahedron 27 5999 1971, Beilstein 6 IV 7020.]
読み込み中…
化学的特性white to light yellow crystal powde