64027-99-2

Basic information

• Product Name: Benzenesulfonic acid, 2,4,6-tris(1-methylethyl)-, cyclopentylidenehydrazide
• CAS NO: 64027-99-2
• Molecular Formula: C20H32N2O2S
• Molecular Weight: 364.552
• Mol File: 64027-99-2.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: Benzenesulfonic acid, 2,4,6-tris(1-methylethyl)-, cyclopentylidenehydrazide(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, 2,4,6-tris(1-methylethyl)-, cyclopentylidenehydrazide(64027-99-2)
• EPA Substance Registry System: Benzenesulfonic acid, 2,4,6-tris(1-methylethyl)-, cyclopentylidenehydrazide(64027-99-2)

Safety Data

• Hazardous Substances Data: 64027-99-2(Hazardous Substances Data)

Upstream product

• 39085-59-1 trisylhydrazine 
• 120-92-3 cyclopentanone 

Downstream Products

• 82201-22-7 Cyclopent-1-enyl-diphenyl-phosphane 
• 3074-61-1 1-propylcyclopentene 
• 38868-18-7 (cyclopent-2-enyl)-diphenylphosphine oxide 
• 4254-02-8 cyclopentanecarbonitrile 
• 4291-99-0 1-n-hexyl-1-cyclopentene 
• 53098-47-8 1-isobutylcyclopentene 
• 2423-01-0 1-n-butylcyclopentene 

Relevant articles and documents

RhI-catalyzed benzo/[7+1] cycloaddition of cyclopropyl-benzocyclobutenes and CO by merging thermal and metal-catalyzed C-C bond cleavages

A Rh-catalyzed benzo/[7+1] cycloaddition of cyclopropyl-benzocyclobutenes (CP-BCBs) and CO to benzocyclooctenones has been developed. In this reaction, CP-BCB acts as a benzo/7-C synthon and the reaction involves two C-C bond cleavages: a thermal electrocyclic ring-opening of the four-membered ring in CP-BCB and a Rh-catalyzed C-C cleavage of the cyclopropane ring.

Silicon-Directed Nazarov Reactions II. Preparation and Cyclization of β-Silyl-substituted Divinyl Ketones

Two general methods for the preparation of β-silyl-substituted divinyl ketones have been developed starting from either α,β-unsaturated aldehydes or simple ketones.Anhydrous FeCl3 induces the cyclization to cyclopentenones under mild conditions and in good yields with predictable and complete control over the position of the double bond in the five-membered ring.The observed effects of substituents on rate can be explained by a rate-determining cationic electrocyclization.Silyl substitution has been shown to retard the reaction.

The Conversion of Aldehydes and Ketones via their 2,4,6-Tri-isopropylbenzenesulphonyl Hydrazones into Nitriles containing One Additional Carbon Atom

2,4,6-Tri-isopropylbenzenesulphonyl hydrazones of aliphatic and alicyclic aldehydes and ketones react readily with potassium cyanide in boiling methanol solution to give the corresponding nitriles (containing one more carbon atom than the original aldehyde or ketone) in satisfactory yield. Under the same conditions, benzaldehyde 2,4,6-tri-isopropylbenzenesulphonyl hydrazone gives phenylacetonitrile in very low yield.In some cases, the arenesulphonyl hydrazones may be generated in situ, in methanol solution, from the carbonyl compounds and 2,4,6-tri-isopropylbenzenesulphonohydrazide (11a), thereby constituting a one-pot preparation or the nitriles.