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1,4-Pentadien-3-ol, 4-methyl-1-(trimethylsilyl)-, (E)- is a complex organic compound with the molecular formula C9H20O2Si. It is characterized by a pentadienol structure, which consists of a five-carbon chain with alternating double and single bonds, and a hydroxyl group attached to the third carbon. The compound also features a 4-methyl group, which is a methyl group (CH3) attached to the fourth carbon of the pentadienol chain. Additionally, it has a trimethylsilyl group (Si(CH3)3) attached to the first carbon, which is responsible for the (E)- configuration, indicating the geometric arrangement of the double bond. 1,4-Pentadien-3-ol, 4-methyl-1-(trimethylsilyl)-, (E)- is primarily used as a reagent in organic synthesis and as a protecting group for alcohols in chemical reactions.

81256-01-1

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81256-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81256-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,5 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81256-01:
(7*8)+(6*1)+(5*2)+(4*5)+(3*6)+(2*0)+(1*1)=111
111 % 10 = 1
So 81256-01-1 is a valid CAS Registry Number.

81256-01-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-methyl-1-trimethylsilylpenta-1,4-dien-3-ol

1.2 Other means of identification

Product number -
Other names (E)-4-methyl-1-trimethylsilyl-1,4-pentadien-3-ol

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 -
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More Details:81256-01-1 SDS

81256-01-1Downstream Products

81256-01-1Relevant academic research and scientific papers

Silicon-Directed Nazarov Reactions II. Preparation and Cyclization of β-Silyl-substituted Divinyl Ketones

Jones, Todd K.,Denmark, Scott E.

, p. 2377 - 2396 (2007/10/02)

Two general methods for the preparation of β-silyl-substituted divinyl ketones have been developed starting from either α,β-unsaturated aldehydes or simple ketones.Anhydrous FeCl3 induces the cyclization to cyclopentenones under mild conditions and in good yields with predictable and complete control over the position of the double bond in the five-membered ring.The observed effects of substituents on rate can be explained by a rate-determining cationic electrocyclization.Silyl substitution has been shown to retard the reaction.

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