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693472

Sigma-Aldrich

(S)-2-[[(1R,2R)-2-[[[3,5-Bis(tert-butyl)-2-hydroxyphenyl]methylene]amino]cyclohexyl]thioureido]-N-benzyl-N,3,3-trimethylbutanamide

technical grade

Synonym(s):

(2S)-2-[[[[(1R,2R)-2-[[[3,5-Bis(1,1-dimethylethyl)-2-hydroxyphenyl]methylene]amino]cyclohexyl]amino]thioxomethyl]amino]-N,3,3-trimethyl-N-(phenylmethyl)butanamide, (2S)-2-[[[[(1R,2R)-2-[[[3,5-Bis(tert-butyl)-2-hydroxyphenyl]methylene]amino]cyclohexyl]amino]thioxomethyl]amino]-N-benzyl-N,3,3-trimethylbutanamide

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About This Item

Empirical Formula (Hill Notation):
C36H54N4O2S
CAS Number:
Molecular Weight:
606.90
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:

grade

technical grade

optical activity

[α]22/D -99°, c = 1 in chloroform

mp

153-163 °C

SMILES string

CN(Cc1ccccc1)C(=O)[C@@H](NC(=S)N[C@@H]2CCCC[C@H]2\N=C\c3cc(cc(c3O)C(C)(C)C)C(C)(C)C)C(C)(C)C

InChI

1S/C36H54N4O2S/c1-34(2,3)26-20-25(30(41)27(21-26)35(4,5)6)22-37-28-18-14-15-19-29(28)38-33(43)39-31(36(7,8)9)32(42)40(10)23-24-16-12-11-13-17-24/h11-13,16-17,20-22,28-29,31,41H,14-15,18-19,23H2,1-10H3,(H2,38,39,43)/b37-22+/t28-,29-,31-/m1/s1

InChI key

IJFFARBIZKKZOA-PVKOWITJSA-N

Application

Catalyst involved in:
  • Enantioselective Pictet-Spengler-type cyclizations of hydroxylactams
  • Aza-Baylid-Hillman reactions
  • Hydrophosphonylation of imines
  • Studies of the effect of structure of molecule on asymmetric Strecker and Mannich reactions
Catalyst for the Mannich reaction

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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

Certificates of Analysis (COA)

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Anna G Wenzel et al.
Journal of the American Chemical Society, 124(44), 12964-12965 (2002-10-31)
Highly enantioselective addition reactions between silyl ketene acetals and N-Boc aldimines are catalyzed by the thiourea-based catalyst 1c. Extraordinary scope is observed in this methodology with regard to the imine substrate, with aryl and heteroaromatic derivatives generally affording nearly quantitative

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