Wyniki wyszukiwania - BazTech

1

Syntheses and Reactions of Allyl Phenylselenides. A Convenient Method of the Allyl Methylcarbamates Synthesis

Ścianowski J., Tafelska-Kaczmarek A.

Polish Journal of Chemistry

|

2007

|

Vol. 81, nr 4

529-534

EN

Allyl phenylselenides from terpene systems are convenient precursors for the synthesis of the terpene allyl alcohols and allyl methylcarbamates. Using optically active allyl phenylselenides corresponding optically active oxygen and nitrogen derivatives were obtained. A new one-step method of the allyl methylcarbamates synthesis from allyl phenylselenides was described.

2

Synthesis and Reactions of Organic Compounds with a Nitrogen Atom. Part XVII. Reactions of Acyclic and Monocyclic Chlorides with Phenylselenosodium

Bąkowska-Janiszewska J., Ścianowski J., Uzarewicz A.

Polish Journal of Chemistry

|

2001

|

Vol. 75, nr 5

649-656

EN

The reaction of neryl (3), geranyl (4), (+)-carvotanacetyl (5), (-)-carvyl (6) and perillyl (7) chlorides with phenylseleno- (1) or phenyltellurosodium (2), and then with chloramine- T afforded _,_-unsaturated toluenesulfonamides 8-11, which were reduced with sodium in liquid ammonia to allylic amines 12-15. Allylic phenyltellurides were oxidized by air to carbonyl compounds 29-31 or alcohol 28.

3

Synthesis and Reactions of Organic Compounds with a Nitrogen Atom : Part XVI. Reactions of (-)-4Chloro-3(10)-carene and (+)-10-Chloro-3-carene with Phenyltelluro- and Phenylselenosodium

Uzarewicz A., Ścianowski J., Bąkowska-Janiszewska J.

Polish Journal of Chemistry

|

2000

|

Vol. 74, nr 8

1079-1083

4

Reaction of (+)-3-Carene and (+)-2-Carene with t-Butyl Hypochlorite or N-Chlorsuccinimide in the Presence of Free Radical Catalysts

Uzarewicz A., Ścianowski J., Bąkowska-Janiszewska J.

Polish Journal of Chemistry

|

2000

|

Vol. 74, nr 6

777-783

EN

Allylic chlorination of (+)-3carene (1) gave (-)-trans-4-chloro-3(10)-carene (2), (+)-10-chloro-carene (4) and 3,4-dichlorocarene (5). Chlorination was done by two methods: with t-butyl hypochlorite or N-chlorsuccinimide in the presence of catalytic amount of alpha, alpha'-azobisisobutylonitrile or benzoyl peroxide, UV irradiation and silica gel. Chlorination of (+)-2-carene (7) using these methods gave p-cymene (8), 1-isopropylene-4-methylbenzene (9) and dipentene (10).

5

Synthesis and Reactions of Organic Compounds with a Nitrogen Atom : Part XV : Reactions of (+)-3-Chloro-2(10)-pinene and (-)-10-Chloro-2-pinene with Phenyltelluro- and Phenylselenosodium

Uzarewicz A., Ścianowski J., Bąkowska-Janiszewska J.

Polish Journal of Chemistry

|

1999

|

Vol. 73, nr 11

1791-1796

6

Synthesis and reaction of organic compounds with a nitrogen atom. Part XII. Reaction of aplha- and beta-pyronene with bis (p-toluenesulfonyl)selenodiimide

Ścianowski J., Uzarewicz A.

Polish Journal of Chemistry

|

1998

|

Vol. 72, nr 1

93-98

EN

Toluenesulfonamidation of alpha-pyronene (1,5,5,6-tetramethyl-1,3-cyclohexadiene) afforded two toluenesulfonamides: N,N'-(1',5',5',6'-tetramethyl-3'-cyclohexan-1',2'-diyl)ditoluenesulfonamide (9) and 4-methyl-N-(4',5',6',6'-tetramethyl-2',4'-cyclohexadien-1'-yl)benzensulfonamide (12). Toluenesulfonamidation of beta-pyronene (1,2,6,6-tetramethyl-1,3-cyclohexadiene) gave N,N'-(3',4',5',5'-tetramethyl-3'-cyclohexen-1',2'-diyl)ditoluenesulfonamide (16). Allylic mono- and ditoluenesulfonamides 9, 12, 16, were reduced by sodium in liquid ammonia to corresponding allylic mono- and diamines 17, 18 i 19.

7

Reaction of allylic alcohols with aliphatic alcohols in the presence of cerium(III) chloride. Part II

Uzarewicz A., Dresler R., Ścianowski J.

Polish Journal of Chemistry

|

1998

|

Vol. 72, nr 4

710-718

EN

The reaction of selected allylic alcohols with methanol, ethanol, n-propanol, isopropanol and tert-butanol in the presence of catalytic amounts of cerium(III) chloride are described. Allylic alkyl ethers, bis-allylic ethers and 1,3-dienes were obtained depending on the structure of the reacting alcohols .