66673-27-6

Basic information

• Product Name: (+/-)-campher 2,4-dinitrophenylhydrazone
• CAS NO: 66673-27-6
• Molecular Weight: 332.359
• Mol File: 66673-27-6.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: (+/-)-campher 2,4-dinitrophenylhydrazone(CAS DataBase Reference)
• NIST Chemistry Reference: (+/-)-campher 2,4-dinitrophenylhydrazone(66673-27-6)
• EPA Substance Registry System: (+/-)-campher 2,4-dinitrophenylhydrazone(66673-27-6)

Safety Data

• Hazardous Substances Data: 66673-27-6(Hazardous Substances Data)

Upstream product

• 124666-33-7 rac-camphor thiosemicarbazone 
• 464-49-3 (1R,4R)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one 
• 119-26-6 (2,4-dinitro-phenyl)-hydrazine 
• 7519-74-6 (+/-)-thiocampher 
• 40920-05-6 (+/-)-2-(methylthio)-2-bornene 
• 76-22-2 Camphor 
• 736109-58-3 1,7,7-trimethyl-bicyclo[2.2.1]heptan-2-one 
• 663197-88-4 (+/-)-5'-acetamido-3'-acetyl-1,7,7-trimethylspiroheptane-2,2'(3'H)-<1,3,4>thiadiazole> 
• 17455-13-9 18-crown-6 ether 

Relevant articles and documents

Acid-base reactions of adamantanethione S-methylide and its spiro-1,3,4-thiadiazoline precursor

The spiro-1,3,4-thiadiazoline 1 loses N2 at 45°C, and, as recently reported, the short-lived adamantanethione S-methylide (2) is an active 1,3-dipole. Interception of 2 by acids HX consists of CH2-protonation and ion recombination. Even 1 acts as HX vs 2 and - after electrocyclic ring opening of the anion (13 →15) - affords the dithioacetal C22H32N2S2 (14). The Δ3-thiadiazoline 1 is converted by base or acid catalysis to the Δ2-tautomer 21. Amidrazones (25, 26) are formed from 1 and sec-amines. The mechanisms are discussed and the structures elucidated.

Unexpected Transformations of Camphor (Thio)Semicarbazones under Acetylating Conditions

The formation of camphor mono- and diacetylhydrazones (1, 4, 6) and a stereoselective synthesis of the spirothiadiazoline (1R)-(+)-2 is described.The degradation of (thio)semicarbazones 3 (X = O, S) and diacetylhydrazone 4 to the acetylhydrazone 6 has bee