21890-96-0

Basic information

• Product Name: 7-(tetrahydro-2H-pyran-2-yloxy)hept-3-yn-1-ol
• CAS NO: 21890-96-0
• Molecular Formula: C₁₂H₂₀O₃
• Molecular Weight: 212.2854
• Mol File: 21890-96-0.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 357.3°C at 760 mmHg
• Flash Point: 169.9°C
• Density: 1.05g/cm³
• Vapor Pressure: 1.53E-06mmHg at 25°C
• Refractive Index: 1.491
• CAS DataBase Reference: 7-(tetrahydro-2H-pyran-2-yloxy)hept-3-yn-1-ol(CAS DataBase Reference)
• NIST Chemistry Reference: 7-(tetrahydro-2H-pyran-2-yloxy)hept-3-yn-1-ol(21890-96-0)
• EPA Substance Registry System: 7-(tetrahydro-2H-pyran-2-yloxy)hept-3-yn-1-ol(21890-96-0)

Safety Data

• Hazardous Substances Data: 21890-96-0(Hazardous Substances Data)

Upstream product

• 75-21-8 oxirane 
• 62992-46-5 1-(tetrahydropyranyloxy)-4-pentyn 
• 33821-94-2 3-(tetrahydro-2H-pyran-2-yloxy)propyl bromide 
• 927-74-2 3-Butyn-1-ol 
• 5390-04-5 pent-1-yn-5-ol 
• 110-87-2 3,4-dihydro-2H-pyran 

Downstream Products

• 1359753-79-9 (E)-7-(4-methoxybenzyloxy)hept-4-en-1-ol 
• 1359753-76-6 (Z)-7-(benzyloxy)hept-4-en-1-ol 
• 1359754-31-6 (Z)-2-(7-(benzyloxy)hept-4-enyloxy)tetrahydro-2H-pyran 
• 1359754-30-5 C₂₀H₃₀O₄ 
• 629-30-1 1,7-heptandiol 

Relevant articles and documents

Total Stereospecific Synthesis of (3E,7Z)-Tetradecadienyl Acetate, the Major Sex Pheromone Component of the Potato Pest Symmetrischema tangolias

(3E,7Z)-Tetradecadienyl acetate, the major sex pheromone component of the potato pest Symmetrischema tangolias (Gyen), was stereoselectively synthesized from the commercially available 3-bromo-1-propanol via the stereospecific reduction of alkyne with lit

Branched-chain and unsaturated 1,7-diaminoheptane derivatives as deoxyhypusine synthase inhibitors

Deoxyhypusine synthase catalyzes the first step in the posttranslational biosynthesis of the unusual amino acid hypusine [Nε-(4-amino-2- hydroxybutyl)lysine] in eukaryotic translation initiation factor 5A (eIF- 5A). elF-5A and its single hypusine residue are essential for cell proliferation. Two series of 1,7-diaminoheptane derivatives were prepared and tested as inhibitors of human deoxyhypusine synthase. These include branched- chain saturated derivatives and both branched- and straight-chain unsaturated derivatives providing size and positional variation in branching and different torsional constraints. Of the branched-chain compounds, 7-amino-1- guanidinooctane (39) proved to be the most potent inhibitor in vitro (IC50, 34 nM), while 1,7-diamino-trans-hept-3-ene (20a) displayed the greatest inhibition (IC50, 0.7 μM) among the unsaturated compounds. Compound 39 also provided effective inhibition of hypusine production in Chinese hamster ovary cells in culture. Considerations of the in vitro inhibition data reported here, along with earlier findings, allowed some speculation concerning the conformation of the substrate spermidine during its productive interaction at the active site of deoxyhypusine synthase.

Cyclopenteneheptenoic acid derivatives and method of preparation thereof

This invention relates to a novel cyclopenteneheptenoic acid derivative having the following formula STR1 wherein R1 is hydrogen, --COCH3, --COCF3, --CO--phenyl, or a hydroxyl protecting group such as tetrahydropyranyl, tetrahydrofuranyl, or tri-lower alkylsilyl; wherein R2 is --CH2 OR1, --COOH, --COOR, --CHO, --CH2 --OSi(R12)3, STR2 wherein R is lower alkyl and each R12 is independently lower alkyl or aryl; and wherein Y is ethylene, cis-vinylene, trans-vinylene, or acetylene. Also disclosed is a novel process for preparation of the above-defined cyclopenteneheptenoic acid derivative. This process involves coupling of a higher order cuprate complex with a chiral cyclopentene compound. The resultant product is particularly useful as a starting compound for high yield synthesis of optically active prostaglandins.