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77744-45-7

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77744-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77744-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,4 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77744-45:
(7*7)+(6*7)+(5*7)+(4*4)+(3*4)+(2*4)+(1*5)=167
167 % 10 = 7
So 77744-45-7 is a valid CAS Registry Number.

77744-45-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 7-((tert-butyldimethylsilyl)oxy)heptanoic acid

1.2 Other means of identification

Product number -
Other names 7-{[tert-butyl(dimethyl)silyl]oxy}heptanoate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:77744-45-7 SDS

77744-45-7Relevant articles and documents

A unified synthesis of cyclic ethers or lactones via Pd-catalyzed intramolecular O-functionalization of sp3C[sbnd]H bonds

Wang, Haifeng,Niu, Youhong,Zhang, Guoying,Ye, Xin-Shan

supporting information, p. 4544 - 4548 (2016/09/23)

A general approach for the synthesis of lactones or cyclic ethers via Pd-catalyzed C(sp3)[sbnd]H activation and intramolecular C[sbnd]O functionalization starting from carboxylic acids or alcohols using the bidentate directing group has been de

12 MEMBERED-RING MACROLACTAM DERIVATIVES

-

, (2009/01/24)

There provided a 12-membered-ring macrolactam derivative having antitumor activity: A compound represented by Formula (1) or a salt thereof. In this Formula, R1 is a hydrogen atom, a C1-6 alkyl group, a C1-6 alkylcarbonyl

Template-Driven Macrolide Closures.

Rastetter, William H.,Phillion, Dennis P.

, p. 3209 - 3214 (2007/10/02)

Thiol-functionalized crown ethers serve as reagents for macrolide closures.The thioesters derived from these crown ethers and ω-hydroxy carboxylic acids yield macrolides when treated with potassium tert-butoxide.The cyclization reaction proceeds via a templated conformation in which the ω-alkoxide is held proximate to the thioester through ionic bonding to the crown-bound potassium cation.Variations in crown ether structure in the series 1-4 show that the criterion of proximate binding is necessary but not sufficient to ensure efficient macrolide closure.The optimal crown ether reagent is thought to provide transition-state stabilization for the attack of the alkoxide on the thioester carbonyl by situating the carbonyl oxygen immediately adjacent to the crown-bound potassium cation.

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