PREFERENTIAL FORMATION OF 5-MEMBERED RINGS IN 2 CLAISEN CYCLIZATIONS

被引：0

作者：

BRANDANGE, S

LEIJONMARCK, H

NOVACIC, Z

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1992年 / 07期

关键词：

D O I：

10.1039/c39920000569

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Alpha-Lithiations of the acetoxy groups of 1 and 2 lead to Claisen cyclisations in which five-membered rings are formed much faster than six-membered rings; this selectivity is opposite to that of aldol condensations.

引用

页码：569 / 570

页数：2

共 50 条

[41] BRIDGEHEAD PHOSPHORANE STRUCTURE OF A CHLORODIAZADIPHOSPHETIDINE WITH FUSED 5-MEMBERED RINGS
DAY, RO
SCHMIDPETER, A
HOLMES, RR
INORGANIC CHEMISTRY, 1982, 21 (11) : 3916 - 3919
[42] RECENT ADVANCES IN THE SYNTHESIS OF PORPHYRINS WITH 5-MEMBERED EXOCYCLIC RINGS
LASH, TD
QUIZONCOLQUITT, DM
SHINER, CM
NGUYEN, TH
HU, Z
ENERGY & FUELS, 1993, 7 (02) : 172 - 178
[43] COMBINATIONAL SCATTERING SPECTRA OF 5-MEMBERED SATURATED HETEROCYCLIC RINGS
BOBROV, AV
LEBEDEV, RS
YAKIMENK.VI
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII FIZIKA, 1972, (04): : 166 - &
[44] RING-PUCKERING GEOMETRICAL MODELS FOR 5-MEMBERED RINGS
DIEZ, E
ESTEBAN, AL
BERMEJO, FJ
RICO, M
JOURNAL OF PHYSICAL CHEMISTRY, 1980, 84 (24): : 3191 - 3196
[45] ORGANOTRANSITION METAL APPROACHES TO HIGHLY FUNCTIONALIZED 5-MEMBERED RINGS
LIEBESKIND, LS
MITCHELL, D
FOSTER, B
CHIDAMBARAM, R
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1987, 194 : 76 - ORGN
[46] Transmission of substituent effects through 5-membered heteroaromatic rings
Lee, I
Rhee, SK
Kim, CK
Chung, DS
Kim, CK
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2000, 21 (09) : 882 - 890
[47] INTRAMOLECULAR WITTIG REACTION OF ALPHA,ALPHA'-DIOXOCYCLOALKYLIDENETRIBUTYLPHOSPHORANES - FORMATION AND TRAPPING OF CYCLOALKYN-2-ONES WITH 5-MEMBERED AND 6-MEMBERED RINGS
OHMORI, H
MAEDA, H
UEDA, C
MASUI, M
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1988, (13) : 874 - 875
[48] The thermal decomposition of 5-membered rings: a laser pyrolysis study
Hore, NR
Russell, DK
NEW JOURNAL OF CHEMISTRY, 2004, 28 (05) : 606 - 613
[49] SYNTHESIS AND POLYMERIZATION OF NEW SPIROPHOSPHORANES HAVING 5-MEMBERED AND 6-MEMBERED RINGS
KOBAYASHI, S
KADOKAWA, JI
UYAMA, H
POLYMER JOURNAL, 1992, 24 (07) : 699 - 702
[50] APPROXIMATE RELATIONSHIPS BETWEEN CONFORMATIONAL PARAMETERS IN 5-MEMBERED AND 6-MEMBERED RINGS
DUNITZ, JD
TETRAHEDRON, 1972, 28 (21) : 5459 - &

← 1 2 3 4 5 →