38261-85-7

Basic information

• Product Name: (1S,2S)-1,2-bis(bromomethyl)cyclohexane
• Synonyms: (1S,2S)-1,2-bis(bromomethyl)cyclohexane
• CAS NO: 38261-85-7
• Molecular Weight: 270.007
• Mol File: 38261-85-7.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: (1S,2S)-1,2-bis(bromomethyl)cyclohexane(CAS DataBase Reference)
• NIST Chemistry Reference: (1S,2S)-1,2-bis(bromomethyl)cyclohexane(38261-85-7)
• EPA Substance Registry System: (1S,2S)-1,2-bis(bromomethyl)cyclohexane(38261-85-7)

Safety Data

• Hazardous Substances Data: 38261-85-7(Hazardous Substances Data)

Upstream product

• 76155-27-6 (+/-)-trans-2-(hydroxymethyl)cyclohexylmethanol 
• 4743-54-8 trans-8-oxabicyclo<4.3.0>nonane 
• 3710-30-3 1,7-Octadiene 
• 3205-34-3 (1S,2S)-(–)-1,2-di(hydroxymethyl)cyclohexane 
• 610-10-6 (1S,2S)-cyclohexane-1,2-dicarboxylic acid 
• 7436-01-3 (1S)-trans-1,2-bis-(toluene-4-sulfonyloxymethyl)-cyclohexane 
• 2305-32-0 trans-1,2-cyclohexanedicarboxylic acid 

Downstream Products

• 7493-02-9 trans-2-thiahydrindane 

Relevant articles and documents

Development of effective bidentate diphosphine ligands of ruthenium catalysts toward practical hydrogenation of carboxylic acids

Hydrogenation of carboxylic acids (CAs) to alcohols represents one of the most ideal reduction methods for utilizing abundant CAs as alternative carbon and energy sources. However, systematic studies on the effects of metal-to-ligand relationships on the catalytic activity of metal complex catalysts are scarce. We previously demonstrated a rational methodology for CA hydrogenation, in which CA-derived cationic metal carboxylate [(PP)M(OCOR)]+ (M = Ru and Re; P = one P coordination) served as the catalyst prototype for CA self-induced CA hydrogenation. Herein, we report systematic trial- and-error studies on how we could achieve higher catalytic activity by modifying the structure of bidentate diphosphine (PP) ligands of molecular Ru catalysts. Carbon chains connecting two P atoms as well as Ar groups substituted on the P atoms of PP ligands were intensively varied, and the induction of active Ru catalysts from precatalyst Ru(acac)3 was surveyed extensively. As a result, the activity and durability of the (PP)Ru catalyst substantially increased compared to those of other molecular Ru catalyst systems, including our original Ru catalysts. The results validate our approach for improving the catalyst performance, which would benefit further advancement of CA self-induced CA hydrogenation.

CARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS

PROBLEM TO BE SOLVED: To provide a process for the carbonylation of ethylenically unsaturated compounds including vinyl esters and a process for the production of 3-hydroxypropanoate esters or 3-hydroxypropanoic acids. SOLUTION: The process comprises reacting the compound with carbon monoxide in the presence of a source of hydroxyl groups and of a catalyst system. The catalyst system is obtainable by combining: (a) a metal of Group 8, 9 or 10 or a compound thereof: and (b) a bidentate ligand of general formula (I): X1(X2)-Q2-A-R-B-Q1-X3(X4). COPYRIGHT: (C)2015,JPOandINPIT

Saturated 5-Membered Ring Conformations 2 - 1H NMR Study of Protonated N-Methylpyrrolidines

The 1H NMR spectra of the protonated and unprotonated forms of cis- and trans-N-methylhexahydroisoindoline, of 1,3,3,4,4-pentamethylpyrrolidine and of 1,3,3-trimethylpyrrolidine were analyzed.The coupling constants between the NH+ and the CH protons α to the nitrogen allowed the study of the conformation of the cyclic systems in pseudorotation.