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CAS RN: 93379-48-7 | Product Number: B1614
(-)-4,5-Bis[hydroxy(diphenyl)methyl]-2,2-dimethyl-1,3-dioxolane
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![(-)-4,5-Bis[hydroxy(diphenyl)methyl]-2,2-dimethyl-1,3-dioxolane](/_ui/responsive/theme-tci/images/missing_product_zoom.jpg "(-)-4,5-Bis[hydroxy(diphenyl)methyl]-2,2-dimethyl-1,3-dioxolane")
Purity: >97.0%(HPLC)
Synonyms:
- (-)-trans-α,α'-(2,2-Dimethyl-1,3-dioxolane-4,5-diyl)bis(diphenylmethanol)
- (2R,3R)-2,3-O-Isopropylidene-1,1,4,4-tetraphenyl-1,2,3,4-butanetetrol
- (-)-2,3-O-Isopropylidene-1,1,4,4-tetraphenyl-L-threitol
- TADDOL
Product Documents:
| Size | Unit Price | Same Day | 2-3 Business Days |
|---|---|---|---|
| 1G |
₩74,000
|
8 | 21 |
| 5G |
₩218,300
|
9 | 15 |
* Please contact our distributor of SEJIN CI Co., Ltd.
if you would like to purchase TCI products. The above prices do not include freight cost, customs charge and other charges to the destination. SEJIN CI Co., Ltd. (Phone: 02-2655-2480 / email:
sales@sejinci.co.kr)
* The storage conditions are subject to change without notice.
* The storage conditions are subject to change without notice.
| Product Number | B1614 |
| Purity / Analysis Method | >97.0%(HPLC) |
| Molecular Formula / Molecular Weight | C__3__1H__3__0O__4 = 466.58 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| Packaging and Container | 1G-Glass Bottle with Plastic Insert (View image) |
| CAS RN | 93379-48-7 |
| Reaxys Registry Number | 3657855 |
| PubChem Substance ID | 87564515 |
| MDL Number | MFCD00064467 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 97.0 area% |
| Optical purity(LC) | min. 98.0 ee% |
| Melting point | 194.0 to 198.0 °C |
| NMR | confirm to structure |
Properties (reference)
| Melting Point | 196 °C |
| Specific Rotation | -69° (C=1,CHCl3) |
GHS
Related Laws:
Transport Information:
| H.S.code* | 2932.99-000 |
Application
Synthesis of Enantioenriched Axially Chiral Olefins via Asymmetric Wittig Reaction
Typical Procedure:
In a vial, (-)-4,5-bis[hydroxy(diphenyl)methyl]-2,2-dimethyl-1,3-dioxolane 4 g (14.0 mg, 0.030 mmol, 20 mol%) and a ketone (0.45 mmol, 3 eq.) are dissolved in toluene (0.75 mL). To the resulting solution, cooled to 0 °C, tert-butyl 2-[tris(4-methoxyphenyl)phosphoranylidene]acetate (70 mg, 0.15 mmol) is added in one portion. The vial is carefully capped, and the reaction mixture is left standing in an ice bath in a fridge (0 °C) without stirring and without precautions to exclude moisture or air. After 144 h, the product is directly obtained by chromatography on silica gel (n-hexane/Et2O 97.5 : 2.5, then 95 : 5).
In a vial, (-)-4,5-bis[hydroxy(diphenyl)methyl]-2,2-dimethyl-1,3-dioxolane 4 g (14.0 mg, 0.030 mmol, 20 mol%) and a ketone (0.45 mmol, 3 eq.) are dissolved in toluene (0.75 mL). To the resulting solution, cooled to 0 °C, tert-butyl 2-[tris(4-methoxyphenyl)phosphoranylidene]acetate (70 mg, 0.15 mmol) is added in one portion. The vial is carefully capped, and the reaction mixture is left standing in an ice bath in a fridge (0 °C) without stirring and without precautions to exclude moisture or air. After 144 h, the product is directly obtained by chromatography on silica gel (n-hexane/Et2O 97.5 : 2.5, then 95 : 5).
References
PubMed Literature
Articles/Brochures
TCIMAIL
[TCIMAIL No.105] Chiral Ligands[Research Articles] Synthesis of Enantioenriched Axially Chiral Olefins via Asymmetric Wittig Reaction
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