CAS 850253-53-1; (R)-(+)-5,5'-双[二(3,5-二甲苯基)膦]-4,4'-二-1,3-苯并二茂; (R)-(+)-dm-segphos<sup>®</sup>

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CAS:

850253-53-1

分子式:

C₄₆H₄₄O₄P₂

分子量:

722.78700

熔点:

256-261 °C

中文名称:

(R)-(+)-5,5'-双[二(3,5-二甲苯基)膦]-4,4'-二-1,3-苯并二茂

(R)-(+)-4,4'-双[二(3,5-二甲苯基)膦]-3,3'-二(1,2-亚甲基二氧苯)

英文名称:

(R)-(+)-dm-segphos^®

(R)-(+)-dm-segphos^?

(R)-(+)-5,5'-bis[di(3,5-xylyl)phosphino]-4,4'-bi-1,3-benzodioxole

(R)-(+)-4,4'-bis[di(3,5-xylyl)phosphino]-3,3'-bi(1,2-methylenedioxybenzene)

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货号

品牌

产品名称

规格

包装、参考价格

详情

R822233

MACKLIN

5,5'-双[二(3,5-二甲苯基)磷酰]-4,4'-二-1,3-氧代联苯

>95.0%(HPLC)

108元/50mg; 293元/200mg;

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储存：室温
状态：白色到米黄色;固体,粉末,晶体,结晶粉末和/或块状

D4499

TCI

(R)-(+)-DM-SEGPHOS^?

>95.0%(HPLC)

455元/200MG; 1540元/1G;

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基本信息

纯度/分析方法	>95.0%(HPLC)
分子式/分子量	C₄₆H₄₄O₄P₂ = 722.80
外观与形状(20℃)	固体
储存在惰性气体下	存放于惰性气体之中
应避免的情况	空气
Reaxys-RN	10636061
PubChem物质ID	253659922

技术规格

Appearance	White to Yellow to Orange powder to crystal
Purity(HPLC)	min. 95.0 area%
Optical purity(LC)	min. 99.0 ee%

物性(参考值)

熔点

248 ℃

15-0478

Strem

(R)-(+)-5,5'-Bis[di(3,5-xylyl)phosphino]-4,4'-bi-1,3-benzodioxole

min. 98%

720元/250mg; 2130元/1g; 6390元/5g;

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Technical Notes:

1. Biaryl bisphos phine ligand with narrow dihedral angle. The DM-SEGPHOS ligand, as the ruthenium complex, gives superior enantios electivity and diastereoselectivity in the asymmetric hydrogenation of a-substituted-ß-ketoesters. See 15-0066. 2.Copper catalyzed enantioselective 3 + 2 cycloaddition as a route to Y amino ketones and 3-pyrrolidinones.

3.Palladium catalyzed e nantioselective addition of malonates to dihydroisoquinolines.

4.Ruthenium catalyzod enantioselective synthesis of ß amino acids by hydroge nation

5.Ruthenium catalyzed asymmetric hydrogenation of 3-quinuclidinone. See 44-0098 for Ru catalyst.

6.Diastereo- and enantioselective ruthenium- catalyzed hydrohydroxyalkylation of 2-silyl-butadienes.

7.Asymmetric 2 +2+2 cycloaddition.

8.Linear selective C-H activation.

9. Ligand used in the asymmetric hydrogenation of quinoxalines, benzoxazines and Benzothiazine .

692476

Sigma-Aldrich

(R)-DM-SEGPHOS^®

399.01元/100 MG;

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产品说明

应用

用于不对称反应的高砂配体和复合物

包装

100 mg in amber glass bottle

法律信息

与 Takasago 联合销售，仅供研究之用。日本注册号3148136
SEGPHOS is a registered trademark of Takasago Intl. Corp.

基本信息

经验(实验)分子式	C₄₆H₄₄O₄P₂
分子量	722.79
MDL编号	MFCD09753008
PubChem化学物质编号	329761500

产品性质

旋光性	[α]20/D +60, c = 0.1 in chloroform
质量水平	100
mp	256-261 ℃
SMILES string	Cc1cc(C)cc(c1)P(c2cc(C)cc(C)c2)c3ccc4OCOc4c3-c5c6OCOc6ccc5P(c7cc(C)cc(C)c7)c8cc(C)cc(C)c8
InChI	1S/C46H44O4P2/c1-27-13-28(2)18-35(17-27)51(36-19-29(3)14-30(4)20-36)41-11-9-39-45(49-25-47-39)43(41)44-42(12-10-40-46(44)50-26-48-40)52(37-21-31(5)15-32(6)22-37)38-23-33(7)16-34(8)24-38/h9-24H,25-26H2,1-8H3
InChI key	XJJVPYMFHXMROQ-UHFFFAOYSA-N

安全信息

储存分类代码	13 - Non Combustible Solids
WGK	WGK 3
闪点(F)	Not applicable
闪点(C)	Not applicable

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