49769-17-7

Basic information

• Product Name: Benzene, 1,1'-(1,6-heptadiyne-1,7-diyl)bis-
• CAS NO: 49769-17-7
• Molecular Formula: C19H16
• Molecular Weight: 244.336
• Mol File: 49769-17-7.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-(1,6-heptadiyne-1,7-diyl)bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(1,6-heptadiyne-1,7-diyl)bis-(49769-17-7)
• EPA Substance Registry System: Benzene, 1,1'-(1,6-heptadiyne-1,7-diyl)bis-(49769-17-7)

Safety Data

• Hazardous Substances Data: 49769-17-7(Hazardous Substances Data)

Upstream product

• 108-86-1 bromobenzene 
• 100200-86-0 1-(hepta-1,6-diyn-1-yl)benzene 
• 536-74-3 phenylacetylene 
• 109-64-8 1,3-dibromo-propane 
• 591-50-4 iodobenzene 
• 2396-63-6 hepta-1,6-diyne 
• 49769-11-1 4,4'-diphenyl-5,5'-propane-1,3-diyl-bis-[1,2,3]selenadiazole 
• 49769-36-0 1,7-diphenyl-heptane-1,7-dione disemicarbazone 

Downstream Products

• 94333-16-1 (3E,4E)-3,4-dibenzylidenecyclopentane 
• 121573-71-5 3-(2,6-dimethylphenylimino)-2,4-diphenylbicyclo[3.3.0]octa-1,4-diene 
• 296280-46-1 CH₂(CH₂CH₂(C₄(C₆H₅)2Ge(CH₃)2)) 
• 1047668-37-0 2,3-dihydro-4,9-diphenyl-1H-cyclopentanaphtho[2,3-d][1,3]dioxole 
• 1167-64-2 {9-phenyl-1H,2H,3H-cyclopenta[b]naphthalen-4-yl}benzene 
• 1047668-35-8 2,3-dihydro-6,7-dimethyl-4,9-diphenyl-1H-cyclopenta[b]naphthalene 
• 1047668-38-1 2,3-dihydro-5,6,7,8-tetrafluoro-4,9-diphenyl-1H-cyclopenta[b]naphthalene 
• 1047668-36-9 2,3-dihydro-6,7-dimethoxy-4,9-diphenyl-1H-cyclopenta[b]naphthalene 
• 1233704-34-1 [RhCl(CO)(C₈H₆O(C₆H₅)2)]2 

Relevant articles and documents

Copper-Mediated Nucleophilic Addition/Cascade Cyclization of Aryl Diynes

Treatment of diyne substrates with sulfinate salts under the action of copper(II) triflate results in a cascade cyclization reaction. The reaction involves nucleophilic addition of the sulfinate and formation of two new C-C bonds with concomitant cleavage of an aryl C-H bond. The reaction proceeds in good yields with a range of diyne precursors and sulfinate salts. Preliminary mechanistic analysis reveals a rare example of an operative ionic mechanism in contrast to other related cyclizations.

Formation of C(sp2) Boronate Esters by Borylative Cyclization of Alkynes Using BCl3

BCl3is an inexpensive electrophile which induces the borylative cyclization of a wide range of substituted alkynes to regioselectively form polycycles containing synthetically versatile C(sp2) boronate esters. It proceeds rapidly, with good yields and is compatible with a range of functional groups and substitution patterns. Intermolecular 1,2-carboboration of alkynes is also achieved using BCl3to generate trisubstituted vinyl boronate esters.

Ruthenium-catalyzed cascade reactions of diynes with norbornadiene -synthesis of norbornene derivatives

Norbomene derivatives 7-11 were prepared from norbornadiene and the corresponding diynes by Ru-catalyzed [(2+2)+2] cycloaddition and subsequent transfer hydrogenation. The structure and stereochemistry of the cycloadducts were confirmed by X-ray crystal a