1 / 3

Echemi Chemical Products Fmoc-L-tert-leucine Description

solid<br><br>Echemi Chemical Products Fmoc-L-tert-leucine Basic Attributes<br>CAS Nouff1a132684-60-7<br><br>Molecular Formula uff1aC21H23NO4

ada002
Download Presentation

Echemi Chemical Products Fmoc-L-tert-leucine Description

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CAS No:132684-60-7 Formula:C21H23NO4 Synonyms:FMOC-L-TLE-OH;FMOC-L-T-BUTYLGLYCINE;FMOC-L-TERT-LEUCINE;FMOC-TLE-OH;FMO C-TBU-GLYCINE;FMOC-TBU-GLY-OH;FMOC-ALPHA-T-BUTYL-GLY-OH;FMOC-ALPHA-T-BUTYLGLYCIN E China Export:From 2018.11 to 2019.11, total export volume of Fmoc-L-tert-leucine from China was 76,865,630KG while total export value was $825,816,556. The biggest proportion of exporting volume in the last 12 months was 14.24% in 2019.05. Echemi Chemical Products Fmoc-L-tert-leucine Description solid Echemi Chemical Products Fmoc-L-tert-leucine Basic Attributes CAS No：132684-60-7 Molecular Formula ：C21H23NO4 Molecular Mass ：353.41 Exact Mass ：353.162720 PSA ：75.6 A^2 LogP ：4.4 InChIKeys ：VZOHGJIGTNUNNC-GOSISDBHSA-N H-bond Acceptor ：4 H-bond Donor ：2 SP3 ：0.33 RBN ：6 Echemi Chemical Products Fmoc-L-tert-leucine Characteristics Density ：1.209±0.06 g/cm3(Predicted) Melting Point ：124-127 °C Bolling Point ：554.1±33.0 °C(Predicted) Flash Point ：288.9±25.4 °C

  2. Refractive Index ：1.584 Storage Condition ：2-8°C Echemi Chemical Products Fmoc-L-tert-leucine Safety Information Hazard Class ：IRRITANT HS Code ：29242990 UN No. ：NONH for all modes of transport WGK_Germany ：3 Safety Instructions ：22-24/25 P Code ： P261, P264, P271, P280, P302+P352, P304+P340, P312, P321, P332+P313, P362, P403+P233, P405, P501 Hazard Statements ：H315 Echemi Chemical Products Fmoc-L-tert-leucine Production Methods Take 500mL of the reaction bottle, Chiral amino acids S-3b (5.1 g, 38.6 mmol) were added to the reaction flask, respectively, Dioxane (40 mL) and10percent sodium carbonate (100 mL), The reaction flask was placed in an ice bath, mechanically stirred, To the dropping funnel was added l-chloroformate-9-fluorenylmethyl ester (10.0 g, 38.6 mmol) andDioxane (100 mL), Slowly drop into the reaction flask and gradually return to room temperature and stir overnight.After completion of the reaction, add water 100mL, extracted with 50mL ether three times, take the water phase into the ice bath to cool, add 1M dilute HCl to PH 1.The aqueous solution was

  3. extracted three times with 50 mL of ethyl acetate.The oil phase was combined and dried over magnesium sulfate and filtered to dryness to give intermediate S-4b (14.3 g, 96percent).

More Related