Novel Molecular Metals Composed Of A [3]Radialene Type Acceptor: 1,2-Bis(p-Benzoquino)-3-[2-(Dicyanomethylene)-2,5-Selenoquino]Cyclopropane Derivative

4-Thiohydantoin and 1-phenyl-4-thiohydantoin reacted with aromatic aldehydes to give the corresponding 5-arylidene-4-thiohydantoin (1 a-h). la was obtained also from 5-benzylidene hydantoin and phosphorous pentasulphide. Grignard reagents added to the lateral double bond of (1 a-c) to give after hydrolysis the colorless products 3. Treatment of (1a, b) with alkylating agents gave the corresponding alkylmercapto derivatives (4 a-h). Also (4a, e) were obtained by the action of ethereal diazomethane on (1a, b). By further methylation of (4 e) with diazomethane, a cyclopropane derivative could be isolated.

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Novel charge-transfer complexes derived from 1,2-bis-benzoquino)-3-(dicyanomenfyleneselenienoquino)cyclopropane derivative and TTF or TTT with metallic behavior

10.1109/stsm.1994.835456 ◽

1994 ◽

Author(s):

K. Takahashi ◽

S. Tarutani

Keyword(s):

Charge Transfer ◽

Charge Transfer Complexes ◽

Metallic Behavior ◽

Cyclopropane Derivative

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Spatial Structure and Antimicrobial Activity of Cyclopropane Derivative of Limonene

Natural Product Communications ◽

10.1177/1934578x1801300401 ◽

2018 ◽

Vol 13 (4) ◽

pp. 1934578X1801300

Author(s):

Daniyar Sadyrbekov ◽

Timur Saliev ◽

Yuri Gatilov ◽

Ivan Kulakov ◽

Roza Seidakhmetova ◽

...

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Pseudomonas Aeruginosa ◽

Antimicrobial Activity ◽

Bacillus Subtilis ◽

Spatial Structure ◽

Bacterial Strains ◽

Gram Negative ◽

X Ray ◽

Cyclopropane Derivative

A cyclopropane derivative of limonene, (1 S, 4 S, 6 R)-7,7-dichloro-4-[(1 S)-2,2-dichloro-1-methylcyclopropyl]-1-methylbicyclo [4.1.0] heptane (compound 2), was synthesized and its structure was determined by NMR and X-ray crystallographic methods. In addition, an antimicrobial activity of the compound against Gram-positive ( Staphylococcus aureus, Bacillus subtilis) and Gram-negative ( Escherichia coli, Pseudomonas aeruginosa) bacterial strains was also scrutinized.

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Synthesis and Evaluation of a Cyclopropane Derivative of DHMEQ

Chemical and Pharmaceutical Bulletin ◽

10.1248/cpb.c13-00914 ◽

2014 ◽

Vol 62 (3) ◽

pp. 304-307 ◽

Cited By ~ 3

Author(s):

Eiko Yasui ◽

Kan Takayama ◽

Takahiro Nakago ◽

Nobuyuki Takeda ◽

Yasutada Imamura ◽

...

Keyword(s):

Cyclopropane Derivative

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CARBONYL AND THIOCARBONYL COMPOUNDS: X. SYNTHETIC EXPERIMENTS WITH COUMARIN-2-THIONE AND BENZOXANTHIONES

Canadian Journal of Chemistry ◽

10.1139/v66-159 ◽

1966 ◽

Vol 44 (9) ◽

pp. 1075-1081 ◽

Cited By ~ 7

Author(s):

N. Latif ◽

I. Fathy

Keyword(s):

Hydrazine Hydrate ◽

Diazo Compound ◽

Diazo Compounds ◽

Cyclopropane Derivative ◽

Cyanoacetic Ester

The benzoxanthene ethers Ia–IIb are obtained in good yields by the action of tetrachloro-and tetrabromo-o-benzoquiuone on 1,2- and 3,4-benzoxanthione, respectively. The benzopyran analogues IIIa–IIIb are obtained by the interaction of the corresponding haloquinone and coumarin hydrazone. The latter, which is now readily obtained by the action of hydrazine hydrate on coumarin-2-thione, condenses with thioketones to give coumarin azines. The benzopyran ethers IIIa and IIIb are cleaved by malononitrile, cyanoacetic ester, hydrazine hydrate, phenylhydrazine, and benzoylhydrazine, yielding the unsaturated nitriles (Va–Vb) and the corresponding hydrazones, respectively.1,2-Benzoxanthione reacts with 9-diazoxanthene, diphenyldiazomethane, and diphenylenediazomethane to give the ethylene sulfides VI–VIII, respectively. However, coumarin-2-thione reacts with the diazo compounds in a different manner; it gives the ethylenes X and XI directly, together with the symmetrical thiiranes XII and XIII, in the cases of diphenyldiazomethane and 9-diazoxanthene, respectively, whereas the cyclopropane derivative XIV is produced in the case of diphenylenediazomethane. XIV is also obtained by the photochemical interaction of coumarin itself and the diazo compound.

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The synthesis of 5,6-cyclopropanocholestanes with oxygen functions in positions 3 and 7

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19860429 ◽

1986 ◽

Vol 51 (2) ◽

pp. 429-435 ◽

Cited By ~ 2

Author(s):

Ladislav Kohout

Keyword(s):

Double Bond ◽

Cyclopropane Ring ◽

Hydroxyl Group ◽

Cyclopropane Derivative

The Simmons-Smith methylenation of the double bond in 3β-acetoxycholest-5-en-7-ols takes place selectively under formation of an adduct the configuration of which is determined by the configuration of the 7-hydroxyl group: 7β-alcohol IV gave 5β,6β-cyclopropane derivative VI, 7α-alcohol V gave 5α,6α-cyclopropane derivative VIII. On photochemically initiated cyclization of 3β-acetoxy-B-homo-5-en-7a-one (XIII) we obtained the product with an α-cyclopropane ring exclusively, i.e. 3β-acetoxy-5,6α-cyclopropano-5α-cholestan-7-one (XII).

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