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Merck
CN

393762

(4S-trans)-2,2-Dimethyl-α,α,α′,α′-tetra(2-naphthyl)-1,3-dioxolane-4,5-dimethanol

98%

Synonym(s):

(+)-2,3-O-Isopropylidene-1,1,4,4-tetra(2-naphthyl)-D-threitol, (+)-DINOL, (4S,5S)-2,2-Dimethyl-α,α,α′,α′-tetra(2-naphthyl)dioxolane-4,5-dimethanol

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About This Item

Empirical Formula (Hill Notation):
C47H38O4
CAS Number:
137365-16-3
Molecular Weight:
666.80
MDL number:
MFCD00142323
UNSPSC Code:
12352005
PubChem Substance ID:
24864540
NACRES:
NA.22

Key Documents

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Assay

98%

optical activity

[α]20/D +116°, c = 1 in ethyl acetate

optical purity

ee: 99% (HPLC)

mp

214-216 °C (lit.)

SMILES string

CC1(C)O[C@@H]([C@H](O1)C(O)(c2ccc3ccccc3c2)c4ccc5ccccc5c4)C(O)(c6ccc7ccccc7c6)c8ccc9ccccc9c8

InChI

1S/C47H38O4/c1-45(2)50-43(46(48,39-23-19-31-11-3-7-15-35(31)27-39)40-24-20-32-12-4-8-16-36(32)28-40)44(51-45)47(49,41-25-21-33-13-5-9-17-37(33)29-41)42-26-22-34-14-6-10-18-38(34)30-42/h3-30,43-44,48-49H,1-2H3/t43-,44-/m0/s1

InChI key

QWADMRIAKWGVBF-CXNSMIOJSA-N

Application

Reagent for the highly enantioselective addition of primary alkyl Grignards to ketones. Chiral auxiliary used for the asymmetric addition of nucleophiles to carbonyls.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCBB9927V
BCBB9927
040543/1
015170/1
12827ME

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D. Seebach et al.
Angewandte Chemie (International Edition in English), 103, 991-991 (1991)
B. Schmidt et al.
Angewandte Chemie (International Edition in English), 103, 100-100 (1991)
Angewandte Chemie (International Edition in English), 31, 84-84 (1992)

Articles

TADDOL

TADDOL chiral auxiliaries find diverse applications in asymmetric synthesis, catalysis, and polymerization.

Chiral Diols

TADDOLs demonstrate versatility in metal-catalyzed asymmetric reactions and as Brønsted acid organocatalysts in hetero-Diels–Alder reactions.

(-)-反-α,α'-(2,2-二甲基-1,3-二氧戊环-4,5-二基)双(二苯甲醇)

由Seebach小组开发的手性助剂TADDOL（α,α,α,α-四芳基-1,3-二氧戊环-4,5-二甲醇）在不对称合成中具有多种应用，包括从用作化学计量手性试剂或用于路易斯酸介导的反应，到在催化加氢和立体规则复分解聚合中发挥作用。

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