32767-70-7

Basic information

• Product Name: 2H-Pyran, tetrahydro-2-(pentyloxy)-
• CAS NO: 32767-70-7
• Molecular Formula: C10H20O2
• Molecular Weight: 172.268
• Mol File: 32767-70-7.mol

Chemical Properties

• CAS DataBase Reference: 2H-Pyran, tetrahydro-2-(pentyloxy)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-Pyran, tetrahydro-2-(pentyloxy)-(32767-70-7)
• EPA Substance Registry System: 2H-Pyran, tetrahydro-2-(pentyloxy)-(32767-70-7)

Safety Data

• Hazardous Substances Data: 32767-70-7(Hazardous Substances Data)

Upstream product

• 110-87-2 3,4-dihydro-2H-pyran 
• 2859-78-1 4-Bromoveratrole 
• 71233-40-4 5-(tetrahydro-2H-pyran-2-yloxy)pentylmagnesium bromide 
• 159598-02-4 5-Pentyloxy-5-phenylsulfanyl-pentan-1-ol 

Downstream Products

• 20965-36-0 2-(phenylthio)tetrahydro-2H-pyran 
• 159598-02-4 5-Pentyloxy-5-phenylsulfanyl-pentan-1-ol 
• 4450-76-4 1-pentyl tosylate 
• 110-62-3 pentanal 
• 167824-61-5 (4R,5S,6S,7R)-4,7-Dibenzyl-1-cyclopropylmethyl-5,6-dihydroxy-3-(5-hydroxy-pentyl)-[1,3]diazepan-2-one 
• 167824-49-9 (4R,5S,6S,7R)-1,4,7-Tribenzyl-5,6-dihydroxy-3-(5-hydroxy-pentyl)-[1,3]diazepan-2-one 
• 167824-51-3 (4R,5S,6S,7R)-4,7-Dibenzyl-5,6-dihydroxy-1-(4-hydroxymethyl-benzyl)-3-(5-hydroxy-pentyl)-[1,3]diazepan-2-one 
• 167824-58-0 (4R,5S,6S,7R)-4,7-Dibenzyl-5,6-dihydroxy-1-(3-hydroxy-benzyl)-3-(5-hydroxy-pentyl)-[1,3]diazepan-2-one 
• 167824-71-7 (4R,5S,6S,7R)-4,7-Dibenzyl-5,6-dihydroxy-1-(3-hydroxymethyl-benzyl)-3-(5-hydroxy-pentyl)-[1,3]diazepan-2-one 
• 167824-48-8 (4R,5S,6S,7R)-4,7-Dibenzyl-5,6-dihydroxy-1-(5-hydroxy-pentyl)-3-naphthalen-2-ylmethyl-[1,3]diazepan-2-one 
• 167824-65-9 3-[(4R,5S,6S,7R)-4,7-Dibenzyl-5,6-dihydroxy-3-(5-hydroxy-pentyl)-2-oxo-[1,3]diazepan-1-ylmethyl]-benzoic acid ethyl ester 
• 628-63-7 1-pentyl acetate 
• 67217-57-6 2-(2-methallyl)tetrahydro-2H-pyran 
• 1253279-28-5 C₁₆H₃₀O₃ 

Relevant articles and documents

Unprecedented polymer-supported π-acid: Synthesis and its application as a promoter to the monothioacetalization of acetals

A novel polymer was synthesized by copolymerization of styrene monomer bearing dicyanoketene acetal functionality and ethylene glycol dimethacrylate, and used successfully as a recyclable π-acid catalyst in monothioacetalization of aromatic, aliphatic, acyclic, and cyclic acetals with thiophenol and phenylthiotrimethylsilane.

Synthesis of Alkylphenols and -catechols from Plectranthus albidus (Labiatae)

In the preceding paper, we described the isolation and structure elucidation of a series of even-numbered phenol- or pyrocatechol-derived 1-arylalkane-5-ones.To establish the assigned structures unambiguously and to have larger quantities available for physiological testing, the following compounds were prepared: in the alkylphenol series, 1-(4'-hydroxyphenyl)tetradecan-5-one (2a), 1-(4'-hydroxyphenyl)hexadecan-5-one (2b), and 1-(4'-hydroxyphenyl)octadecan-5-one (2c); in the alkylcatechol series, 1-(3',4'-dihydroxyphenyl)decan-5-one (3a; not isolated as a natural compound), 1-(3',4'-dihydroxyphenyl)dodecan-5-one (3b), 1-(3',4'-dihydroxyphenyl)tetradecan-5-one (3c), 1-(3',4'-dihydroxyphenyl)hexadecan-5-one (3d), 1-(3',4'-dihydroxyphenyl)octadecan-5-one (3e), and 1-(3',4'-dihydroxyphenyl)icosan-5-one (3f); in the alkenylphenol series, (Z)-1-(4'-hydroxyphenyl)octadec-13-en-5-one (4a) and (E)-1-(4'-hydroxyphenyl)octadec-13-en-5-one (4b); in the alkenylcatechol series, (E,E)-1-(3',4'-dihydroxyphenyl)deca-1,3-dien-5-one (1) and (Z)-1-(3',4'-dihydroxyphenyl)octadec-13-en-5-one (5).All compounds proved to be identical with the previously assigned structures.Compound 1 was synthesized by regioselective aldol condensation of heptan-2-one with (E)-3-(3',4'-dimethoxyphenyl)prop-2-enal (6d; Scheme 1), the phenols 2a-c and the catechols 3a-f by addition of the corresponding alkyl Grignard reagent to 5-(4'-methoxyphenyl)- or 5-(3',4'-dimethoxyphenyl)pentanal (17c and 18c, resp.; Scheme 4), and the olefins 4a, 4b and 5 from 17c or 18c via the 9-O-silyl-protected 13-(4'-methoxyphenyl)- or 13-(3',4'-dimethoxyphenyl)tridecanals (26 and 27, resp.) and Wittig olefination as the key steps (Scheme 5).

Stereoselective synthesis of alkenyl alcohols using dissolving metal(Ca,Na) reduction

Use of the calcium-ethylenediamine and sodium-liquid ammonia reduction systems for the ring opening of dihydropyran derivatives was studied. (Z)-Alkenyl alcohols and (E)-alkenyl alcohols were stereoselectively synthesized respectively.