ChemicalBook >?? ???? >1,2-Dibromo-4-fluorobenzene

1,2-Dibromo-4-fluorobenzene

1,2-Dibromo-4-fluorobenzene ??? ???

?? ??:: 2369-37-1

???:: 1,2-Dibromo-4-fluorobenzene

???(??):: 3,4-DIBROMOFLUOROBENZENE;1,2-Dibromo-4-fluorobezene;3,4-Dibromo-1-fluorobenzene;1,2-DIBROMO-4-FLUOROBENZENE;Benzene, 1,2-dibromo-4-fluoro-;1,2-Dibromo-4-fluorobenzene>1,2-Dibromo-4-fluorobenzene99%;1,2-Dibromo-4-fluorobenzene 99%;1,2-Dibromo-4-fluorobenzene,98%;1,2-DibroMo-4-fluorobenzene[3,4-DibroMofluorobenzene]

CBNumber:: CB2316804

???:: C6H3Br2F

??? ??:: 253.89

MOL ??:: 2369-37-1.mol

?? ?? 131

1,2-Dibromo-4-fluorobenzene ??

???: 69℃

?? ?: 220℃

??: 2.014

???: 1.5780-1.5820

???: 87℃

??? ??: ??? ??

??: ??~???

CAS ??????: 2369-37-1(CAS DataBase Reference)

?? ? ?? ??
?? ? ???? ?? (GHS)

??? ??	Xi
?? ???? ??	36/37/38
?????	26-36/37/39
?? ?? ??	Irritant
HS ??	2903998090

????(GHS):

?? ?:

Warning

??·?? ??:

??	??·?? ??	?? ??	??	?? ?	?? ??	P- ??
H315	??? ??? ???	????? ?? ?????	?? 2	??		P264, P280, P302+P352, P321,P332+P313, P362
H319	?? ?? ??? ???	?? ? ?? ?? ??? ??	?? 2A	??		P264, P280, P305+P351+P338,P337+P313P

??????:

P264	?? ??? ?? ??? ????.
P264	?? ??? ?? ??? ????.
P280	????/???/???/?????? ?????.

NFPA 704

	1
0		0

1,2-Dibromo-4-fluorobenzene C??? ??, ??, ??

?? ???

The Suzuki–Miyaura reaction of 1,2- dibromo-4-fluorobenzene with two equivalents of arylboronic acids 2a–d, i,v afforded the fluorinated terphenyls 15a–f in moderate to good yields. The best yields were obtained using 2.2 equivalents of the aryl boronic acid, Pd(PPh3)4 (0.03 equiv) as the catalyst, and Cs2CO3 (2.2 equiv) as the base (1,4-dioxane, 90 8C, 8 h). The low site-selectivity in the case of 1,2-dibromo-4-fluorobenzene (13) can be explained by the fact that the positions 1 and 2, located meta and para to the fluorine atom, are sterically and electronically very similar[1].

1,2-Dibromo-4-fluorobenzene ?? ?? ? ???

???

2,4-Dibromo-1-fluorobenzene 3,4-??????? ?????? 4-?????? 4-????????

?? ??

1,2-Dibromo-4-fluorobenzene ?? ??

???( 131)?? ??

???	??	???	??	?? ?	??
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20243	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29730	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
Nanjing Dolon Biotechnology Co.,Ltd.	18905173768	sales@dolonchem.com	CHINA	2972	58
Wuhan Chemwish Technology Co., Ltd	027-67849912	sales@chemwish.com	CHINA	10821	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49732	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29808	58
Fuxin Pharmaceutical	+86-021-021-50872116 +8613122107989	contact@fuxinpharm.com	China	10035	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Win-Win chemical CO., Limited	+86-0086-577-64498589 +86-15355981851	sales@win-winchemical.com	China	14442	58

1,2-Dibromo-4-fluorobenzene ?? ??:

2,6-????-4-??????? 1,2-Dibromotetrafluorobenzene 1,2-Dibromo-4,5-difluorobenzene 1,2,3-TRIBROMO-5-FLUOROBENZENE 1,2-DIBROMO-3,5-DIFLUOROBENZENE 1,2-DIBROMO-4-FLUOROBENZENE 1,3-Dibromo-2-chloro-5-fluorobenzene 1,3-DIBROMOTETRAFLUOROBENZENE 1,4-Dibromo-2,5-difluorobenzene 1,4-DIBROMOTETRAFLUOROBENZENE 1,3-Dibromo-5-fluorobenzene98%,1,3-Dibromo-5-fluorobenzene 98%,1,3-DIBROMO-5-FLUOROBENZENE,3,5-Dibromo-1-fluorobenzene ALPHA,ALPHA-DIBROMO-4-FLUOROACETOPHENONE 2-CHLORO-3,5-DIBROMO-1-FLUOROBENZENE 1-Chloro-3,4-dibromo-5-fluorobenzene 98%,1-Chloro-3,4-dibromo-5-fluorobenzene98% 2,4-Dibromo-1-fluorobenzene 5-CHLORO-1,2-DIBROMO-3-FLUOROBENZENE,5-CHLORO-2,3-DIBROMO-1-FLUOROBENZENE,1-CHLORO-3,4-DIBROMO-5-FLUOROBENZENE 1,4-DIBROMO-2-FLUOROBENZENE,1,4-Dibromo-2-fluorobenzene 98%,1,4-Dibromo-2-fluorobenzene98%,1,4-Dibromo-2-fluorobenzene, 99+% 3,4-Dibromo-6-fluoroaniline

天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片