69637-30-5

Basic information

• Product Name: 2-Pentenoic acid, 5-hydroxy-5-phenyl-, (E)-
• CAS NO: 69637-30-5
• Molecular Formula: C11H12O3
• Molecular Weight: 192.214
• Mol File: 69637-30-5.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 2-Pentenoic acid, 5-hydroxy-5-phenyl-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Pentenoic acid, 5-hydroxy-5-phenyl-, (E)-(69637-30-5)
• EPA Substance Registry System: 2-Pentenoic acid, 5-hydroxy-5-phenyl-, (E)-(69637-30-5)

Safety Data

• Hazardous Substances Data: 69637-30-5(Hazardous Substances Data)

Upstream product

• 114996-07-5 2E-5-hydroxy-5-phenyl-pent-2-enoic acid ethyl ester 
• 3724-65-0 2-butenoic acid 
• 100-52-7 benzaldehyde 
• 106-95-6 allyl bromide 
• 88239-39-8 γ-bromocrotonate de trimethylsilyle 
• 109751-81-7 4-trimethylsilyl-2-butenoate trimethylsilyl ester 
• 87121-06-0 1,1-bis(trimethylsilyloxy)-buta-1,3-diene 

Downstream Products

• 116805-87-9 5-hydroxy-5-phenylpentanoic acid 

Relevant articles and documents

Dienediolates from Unsaturated Carboxylic Acids. Reaction with para-Substituted Benzaldehydes. Electronic Effects on Regioselectivity

Regioselectivity α/γ ratios for addition of the lithium dienediolate of crotonic acid to para-substituted benzaldehydes are subject to small electronic effects when reactions are carried out at low temperature, but strong influence by substituents is observed on heating for 1 h at 60 deg C.A linear correlation is then found between regiochemical ratios and ?p parameters.Stereoselectivity RR/RS ratios (33:66 to 43:57) for α-adducts obtained in the cold do not depend on the substituents.

SUR LA REGIO SELECTIVITE DE LA REACTION DU BENZALDEHYDE AVEC LES ORGANOZINQUES ISSUS DU γ-BROMOCROTONATE ET DU γ-BROMOSENECIOATE DE TRIMETHYLSILYLE

The regioselectivity of the reaction of organozinc compounds derived from γ-bromocrotonic and γ-bromosenecioic trimethylsilyl esters, with benzaldehyde is discussed.One-step reactions lead to a majority of α-substituted derivatives, while in two-step reactions, γ-substituted products are exclusively obtained.

SILYLCETENES ACETALS ISSUS D'ACIDES α,β-ETHYLENIQUES: PREPARATIONS ET APPLICATIONS EN SYNTHESE

The preparation of bis(trimethylsilyl)butadienyl acetal(I) and bis(trimethylsilyl)methylbutadienyl acetal (II) is reported; compound I reacts with phenyl aldehyde and titanium chloride to give linear and branched isomers of hydroxyacids.