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317020

Sigma-Aldrich

(−)-DIP-Chloride™

Synonym(s):

(−)-B-Chlorodiisopinocampheylborane, (−)-Ipc2BCl

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About This Item

Empirical Formula (Hill Notation):
C20H34BCl
CAS Number:
85116-37-6
Molecular Weight:
320.75
Beilstein:
5937756
MDL number:
MFCD00074807
UNSPSC Code:
12352001
PubChem Substance ID:
24859060
NACRES:
NA.22
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form

solid

Quality Level

100

mp

52-56 °C (lit.)

SMILES string

C[C@H]1[C@@H](CC2CCC1C2(C)C)B(Cl)[C@@H]3CC4CCC([C@H]3C)C4(C)C

InChI

1S/C20H34BCl/c1-11-15-7-13(19(15,3)4)9-17(11)21(22)18-10-14-8-16(12(18)2)20(14,5)6/h11-18H,7-10H2,1-6H3/t11-,12-,13+,14+,15-,16-,17-,18-/m1/s1

InChI key

PSEHHVRCDVOTID-VMAIWCPRSA-N

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Application

Both (+)- and (-)-DIP-chloride are used for asymmetric reduction of prochiral ketones[1][2] and for the preparation of β-amino alcohols.[2][3]
Reagent used for an enantioselective reduction of (chloroacetyl) benzofurans to chlorohydrins which serve as intermediates for the corresponding epoxides and aminoalcohols.[4] For a short paper on the preparation of DIP halides and their use in stereoselective reductions see Chem. Commun. 1053 (1994).[5]

Legal Information

DIP-Chloride is a trademark of Sigma-Aldrich Co. LLC

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SHBL3397
SHBK7309
SHBJ9859
SHBH1300V
SHBG5770V

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Bull. Korean Chem. Soc., 26, 652-652 (2005)
Journal of the Chemical Society. Chemical Communications, 1053-1053 (1994)
Tetrahedron Letters, 35, 1511-1511 (1994)
Katie M Cergol et al.
Nature protocols, 2(10), 2568-2573 (2007-10-20)
The protocol for the preparation of boron enolates and their subsequent reaction with aldehydes is described, providing convenient access to beta-hydroxy ketones in good yields and with high stereoselectivities. The reaction consists of three steps: first, the ketone is rapidly
Tetrahedron Asymmetry, 16, 3205-3205 (2005)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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