INTERACTION OF RHODIUM(I) WITH CYCLOPROPENONES - DECARBONYLATION AND FORMATION OF 1-RHODACYCLOPENTENE-2,5-DIONES AND CATIONIC OXYGEN SIGMA-BOUND CYCLOPROPENONE COMPLEXES - X-RAY CRYSTAL-STRUCTURE OF TRANS-CARBONYLBIS(TRIPHENYLPHOSPHINE)(DI-TERT-BUTYLCYCLOPROPENONE)RHODIUM TRIFLUOROMETHANESULFONATE

被引：35

作者：

SONG, LS ^{[1
]}

ARIF, AM ^{[1
]}

STANG, PJ ^{[1
]}

机构：

[1] UNIV UTAH, DEPT CHEM, SALT LAKE CITY, UT 84112 USA

来源：

ORGANOMETALLICS | 1990年 / 9卷 / 10期

关键词：

D O I：

10.1021/om00160a029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cyclopropenones 5a,b react with chlorotris(triphenylphosphine)rhodium to form trans-chlorocarbonylbis(triphenylphosphine)rhodium and acetylenes 7a,b. Reactions of 5a,b with trans-chlorocarbonylbis(triphenylphosphine)rhodium result in the formation of rhodacyclopentenediones 8a,b through the insertion of both the rhodium and the carbonyl into the three-membered ring. Di-teri-butylcyclopropenone, 5c, in contrast, does not react with chlorotris(triphenylphosphine)rhodium or trans-chloro carbonylbis(triphenylphosphine)rhodium under similar reaction conditions. All three cyclopropenones 5a-c react with trans-carbonylbis(triphenylphosphine)rhodium trifluoromethanesulfonate (triflate) to give the cationic rhodium complexes l0a-c without ring opening. However, 5a,b yield the insertion products 12a,b when the reactions are done in benzene at ca. 60 °C. The X-ray crystal structure of trans-carbo nylbis(triphenylphosphine)(di-tert-butylcyclopropenone)rhodiurn triflate, 10c, is reported. © 1990, American Chemical Society. All rights reserved.

引用

页码：2792 / 2797

页数：6

共 22 条

[1] STRUCTURES OF, AND CHARGE SEPARATION IN, "2,3-DIPHENYL-4,4-DICYANOTRIAFULVENE AND 2,3-DIPHENYLCYCLOPROPENONE [J].