30531-69-2

Basic information

• Product Name: 1H-2-Benzopyran-1-one, 3-butyl-
• CAS NO: 30531-69-2
• Molecular Formula: C13H14O2
• Molecular Weight: 202.253
• Mol File: 30531-69-2.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 1H-2-Benzopyran-1-one, 3-butyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-2-Benzopyran-1-one, 3-butyl-(30531-69-2)
• EPA Substance Registry System: 1H-2-Benzopyran-1-one, 3-butyl-(30531-69-2)

Safety Data

• Hazardous Substances Data: 30531-69-2(Hazardous Substances Data)

Upstream product

• 98-88-4 benzoyl chloride 
• 20718-17-6 2-(dimethyl(oxo)-λ⁶-sulfaneylidene)-1-phenylethan-1-one 
• 638-29-9 n-valeryl chloride 
• 866395-16-6 [bis(trifluoromethanesulfonyl)imidate](triphenylphosphine)gold(I) 
• 791-28-6 Triphenylphosphine oxide 
• 17922-43-9 allyldiphenyl(methyl)silane 
• 156397-47-6 trifluoromethanesulfonyloxy(triphenylphosphine)gold(I) 
• 1221151-98-9 2,3,4,6-tetra-O-benzoyl-D-glucopyranosyl ortho-(hex-1-ynyl)benzoate 
• 462637-40-7 2-(1-hexynyl)benzoic acid methyl ester 
• 693-02-7 hex-1-yne 
• 120870-47-5 2-(1-hexyn-1-yl)benzoic acid 
• 610-97-9 o-iodo-methyl-benzoic acid 
• 1357469-14-7 (2E)-3-phenylprop-2-en-1-yl 2-hex-1-yn-1-ylbenzoate 
• 1093198-48-1 C₂₁H₂₂O₂ 

Downstream Products

• 132-90-1 3-n-butyl-1(2H)-isoquinolinone 
• 30531-71-6 2-(2'-oxohexyl)benzoic acid 
• 1211903-72-8 1-[2-(hydroxymethyl)phenyl]hexan-2-ol 
• 603126-21-2 2-(2'-hydroxyhexyl)benzoic acid 
• 106596-78-5 methyl 2-(2'-oxohexyl)benzoate 
• 653597-74-1 rac-3-(1,2-epoxybutyl)-1H-2-benzopyran-1-one 
• 29428-84-0 trans-artemidin 

Relevant articles and documents

Ruthenium(II)-Catalyzed Homocoupling of Weakly Coordinating Sulfoxonium Ylides via C?H Activation/Annulations: Synthesis of Functionalized Isocoumarins

Homocoupling of weakly coordinating sulfoxonium ylides was accomplished via ruthenium (II) catalyzed C?H activation process. This strategy provides a convenient, efficient and step-economic method to access 3-substituted isocoumarins with good functional

Gold(i)-catalyzed C-glycosylation of glycosyl: Ortho -alkynylbenzoates: The role of the moisture sequestered by molecular sieves

C-Glycosylation of glycosyl ortho-hexynylbenzoates with allyltrimethylsilane or silyl enol ethers could proceed smoothly under the catalysis of Ph3PAuNTf2 to provide the corresponding C-glycosides in high yields and stereoselectivity, wherein the moisture sequestered by the molecular sieves was disclosed to play a critical role in the gold(i)-catalytic cycle.

Mechanistic insights into the gold(I)-Catalyzed activation of glycosyl Ortho -Alkynylbenzoates for Glycosidation

Anomerization, which involves cleavage and formation of the anomeric C-O bond, is of fundamental importance in the carbohydrate chemistry. Herein, the unexpected gold(I)-catalyzed anomerization of glycosyl ortho-alkynylbenzoates has been studied in detail. Especially, crossover experiments in the presence of an exogenous isochromen-4-yl gold(I) complex confirm that the anomerization proceeds via the exocleavage mechanism, involving (surprisingly) the addition of the isochromen-4-yl gold(I) complex onto a sugar oxocarbenium (or dioxolenium) and an elimination of LAu+ from the vinyl gold(I) complex. The inhibitory effect of the exogenous isochromen-4-yl gold(I) complex when in stoichiometric amount on the anomerization has guided us to disclose an isochromen-4-yl gem-gold(I) complex, which is inactive in catalysis but in equilibrium with the monogold(I) complex and the LAu+ catalyst. The proposed key intermediate in the anomerization, a transient glycosyloxypyrylium species, is successfully trapped via a cycloaddition reaction with n-butyl vinyl ether as a dienophile. SN2-like substitution of the initially formed glycosyloxypyrylium intermediate has then been achieved to a large extent via charging with acceptors in an excess amount to lead to the corresponding glycosides in a stereoselective manner.