930-66-5Relevant academic research and scientific papers
Cyclohexeno[3,4]cyclodec-1,5-diyne-3-ene: A Convenient Enediyne
Perrin, Charles L.,Shrinidhi, Annadka
supporting information, p. 6911 - 6915 (2021/09/14)
Enediynes are widely studied to understand their cycloaromatization and the trapping of the resulting p-dehydrobenzene diradical. However, few model substrates are known, and they are hard to synthesize and difficult to handle. Herein we report cyclohexen
Preparation method of heteroatom-containing cyclohexene halide
-
Paragraph 0048-0050, (2019/12/25)
The invention discloses a preparation method of a heteroatom-containing cyclohexene halide, belonging to the field of synthesis of fine chemical intermediates. According to the preparation method, cyclohexanone containing heteroatoms is used as a raw material, and gem-dihalide or alkenyl halide is mainly generated in a halogenating reagent; and after an additive is added into organic alkali, and hydrogen halide is removed to generate cyclohexene halide containing heteroatoms. The method is simple in process; the operation of purifying a mixture in traditional methods is avoided; and a productis fully utilized. Under close-to-elimination condition of gem-dibromide, an additive is added to overcome the problem of difficulties in gem-dichloride elimination is by adding, and the purpose of controlling regioselectivity is achieved through steric hindrance of different alkalis.
Synthesis of Vinyl Chlorides via Triphosgene-Pyridine Activation of Ketones
Saputra, Mirza A.,Ngo, Ly,Kartika, Rendy
, p. 8815 - 8820 (2015/09/15)
Herein, we describe a mild method to prepare aliphatic and aromatic vinyl chlorides from their corresponding ketones via triphosgene-pyridine activation in dichloromethane at reflux. The mechanism of this reaction is proposed to involve formation of a put
The continuous reaction device and method of using the continuous composite (by machine translation)
-
Paragraph 0179, (2017/01/02)
PROBLEM TO BE SOLVED: compounds with high productivity can be generated. SOLUTION: 1 the raw material supply section 12 and a first, a second and 2 the raw material supply section 14, and a reaction part 18, the first reaction part 1 from the raw material supply section 1 and a second quantity of raw material, the raw material supply section 2 from the first reaction part 2 and a second quantity of raw material, the raw material supply section 1 from the first reaction part 1 and a second temperature of the raw material, the raw material supply section 2 from the first reaction part 2 and supplied to the temperature of the raw material, and having a control part 22, a continuous reaction device as shown in the drawing. Selected drawing: fig. 1 (by machine translation)
Structure and Dynamic Features of an Intramolecular Frustrated Lewis Pair
Axenov, Kirill V.,Moemming, Cornelia M.,Kehr, Gerald,Froehlich, Roland,Erker, Gerhard
supporting information; experimental part, p. 14069 - 14073 (2011/02/23)
Di(mesityl)cyclohexenylphosphine undergoes hydroboration with Piers' borane [HB(C6F5)2] to yield the cyclohexylene- anellated frustrated Lewis pair 5. This P/B pair splits H2 with the formation of the product 4
First catalytic and green synthesis of aryl-(Z)-vinyl chlorides and its plausible addition-elimination mechanism
Su, Weike,Jin, Can
, p. 993 - 996 (2007/10/03)
(Chemical Equation Presented) Via a catalytic cycle in the presence of scandium triflate (2 mol %)/DMF (1 mol %)/benzoyl chloride (5 mol %), aromatic ketones were treated with bis(trichloromethyl) carbonate (BTC) to afford aryl-(Z)-vinyl chlorides. All metal triflates tested in the reaction showed highly catalytic activity. A plausible addition-elimination mechanism was proposed. The present work describes the first catalytic and green route to the synthesis of aryl-(Z)-vinyl chlorides.
Method for chlorinating ketones
-
Example 1, (2008/06/13)
In a process for chlorinating ketones which, apart from the carbonyl group, are inert in respect of triarylphosphine dichlorides, except for cyclopropyl methyl ketone, in which the ketones are reacted with a chlorinating agent in the presence of triarylphosphine oxides, the amount of triarylphosphine oxide is from 0.1 to 10 mol %, based on the amount of ketone. The ketones preferably have a least one CH-acid proton in the α position to the carbonyl group.
Dichotomous reactivity of PCl5 and PBr5 toward cyclic ketones: A one-step preparation of 1,1,2-trichlorocycloalkanes
Brown,Chronister,Watkins,Mazzaccaro,Rajski,Fountain,McKay,Gibson
, p. 485 - 501 (2007/10/02)
Small-ring cyclic ketones react with excess PCl5 in CCl4 (reflux, 1-3 d) to give the corresponding 1,1,2-trichlorocycloalkanes, but react with PBr5 to give ketones brominated in the α-positions.
One-pot synthesis of α-trimethylsilyl enones from vinylsilanes
Adam,Richter
, p. 176 - 180 (2007/10/02)
Photooxygenation of vinylsilanes in the presence of acetic anhydride and pyridine afforded α-trimethylsilyl enones 1 in moderate to good yields. Since the required starting materials are readily available, the present approach constitutes a useful alterna
Reaction of alkylhypochlorites and xenon difluoride with cyclohexene
Shellhamer,Horney,Toth,Heasley
, p. 6903 - 6906 (2007/10/02)
Reactions of alkylhypochlorites and xenon difluoride with cyclohexene give primarily 1-chloro-2-fluorocyclohexanes via formation of a complex between xenon difluoride and the alkylhypochlorite.
